List of mathematicians (R)

Raa

• Raabe, Joseph Ludwig (Switzerland, 1801–1859)
• Rabin, Michael O. (Israel, born 1931)
• Rabin, Tal (Faridabad, ?–?)
• Rabinovich, Evsei (Russia/Soviet Union, ?–?)
• Rabinovich, Matvei (Russia/Soviet Union, 1919–1982)
• Rabinowitz, Paul (USA, born 1939)
• Rabinowitz, Philip (USA, 1926–2006)
• Rabuel, Claude (France, 1669–1729)
• Racah, Giulio (Israel, 1909–1965)
• Rachev, Svetlozar (Bulgaria, born 1951)
• Radau, Rodolphe (Germany, 1835–1911)
• Rademacher, Hans (USA/Germany, 1892–1969)
• Radford, Luis (Aligarh U.P, ?–?)
• Radhakrishnan, Jaikumar (India, born 1964)
• Radin, Charles (USA, ?–?)
• Rado, Richard (Germany/Britain, 1906–1989)
• Radó, Tibor (USA, 1895–1965)
• Radon, Johann (Austria, 1887–1956)
• Rados, Gusztáv (Hungary, 1862–1942)
• Rådström, Hans (Sweden, 1919–1970)
• Radunskaya, Ami (?, ?–?)
• Radziszowski, Stanisław (Poland, born 1953)
• Radziwill, Maksym (Canada, ?–?)
• Rafique, Muhammad (mathematician) (Pakistan, 1940–1996)
• Raftery, Adrian (Ireland/USA, born 1955)
• Raghavan, Prabhakar (India, born 1960)
• Raghavan, Srinivasacharya (India, born 1934)
• Raghunathan, M. S. (India, born 1941)
• Ragsdale, Virginia (?, 1870–1945)
• Rahman, Mizan (Canada, 1932–2015)
• Rahman, Saidur (professor) (?, born 1966)
• Rahn, Johann (Switzerland, 1622–1676)

Rai

• Rains, Eric M. (?, born 1973)
• Rainville, Earl D. (USA, 1907–1966)
• Rainwater, John (USA, ?–?)
• Rajagopal, Cadambathur Tiruvenkatacharlu (India, 1903–1978)
• Rajaram, N. S. (India, 1943–2019)
• Rajchman, Aleksander (Poland, 1890–1940)
• Rajewski, Jan (Poland, 1857–1906)
• Ralescu, Stefan (USA, born 1952)
• Rallis, Stephen (?, 1942–2012)
• Ramachandra, Kanakanahalli (India, 1933–2011)
• Ramadas, T. R. (India, born 1955)
• Ramanan, Kavita (India, ?–?)
• Ramanan, S. (India, born 1937)
• Ramanathan, Annamalai (India, 1949–1993)
• Ramanathan, K. G. (India, 1920–1992)
• Ramanujam, C. P. (India, 1938–1974)
• Ramanujan, Srinivasa (India, 1887–1920)
• Ramaré, Olivier (France, ?–?)
• Ramaswamy, Mythily (India, born 1954)
• Rambo, Susan Miller (USA, 1883–1977)
• Ramchundra (India, 1821–1880)
• Ramdorai, Sujatha (India, ?–?)
• Ramero, Lorenzo (Italy/France, ?–?)
• Ramis, Jean-Pierre (?, born 1943)
• Ramler, Saly Ruth (Czech Republic, ?–?)
• Ramm, Alexander (USA, born 1940)
• Rampinelli, Ramiro (Italy, 1697–1759)
• Ramsden, Jesse (England, 1735–1800)
• Ramsey, Arthur Stanley (Britain, 1867–1954)
• Ramsey, Frank (mathematician) (?, 1903–1930)
• Ramus, Petrus (France, 1515–1572)

Ran

• Randal-Williams, Oscar (Britain, ?–?)
• von Randow, Thomas (Germany, 1921–2009)
• Ranganathan, S. R. (India, 1892–1972)
• Ranicki, Andrew (?, 1948–2018)
• Rankin, Robert Alexander (Scotland, 1915–2001)
• Rannacher, Rolf (?, born 1948)
• Ransford, Thomas (Canada, born 1958)
• Rao, A. R. (India, 1908–2011)
• Rao, B. L. S. Prakasa (India, born 1942)
• Rao, C. R. (USA/India, born 1920)
• Rao, R. Ramachandra (India, 1871–1936)
• Rao, R. Ranga (India, ?–?)
• Rao, S. B. (?, born 1943)
• Raper, Matthew (Britain, 1705–1778)
• Raphson, Joseph (England, 1640s–1710s)
• Rapoport, Michael (Germany, born 1948)
• Rasch, Georg (Denmark, 1901–1980)
• Rashed, Roshdi (Egypt, born 1936)
• Rashevsky, Nicolas (Ukraine, 1899–1972)
• Rashid, Muneer Ahmad (Pakistan, born 1934)
• Rasiowa, Helena (Poland, 1917–1994)
• Rassias, Themistocles M. (Greece, born 1951)
• Ratiu, Tudor (Romania, born 1950)
• Ratner, Marina (USA, 1938–2017)
• Ratner, Yitzchak (?, born 1857)
• Rátz, László (Hungary, 1863–1930)
• Rau, K. Ananda (India, 1893–1966)
• Rauch, Harry (USA, 1925–1979)
• Rautenberg, Wolfgang (Germany, 1936–2011)
• Raven, Francis (?, 1902–1983)
• Ravenel, Douglas (USA, born 1947)
• Ravetz, Jerome (USA/Britain, born 1929)
• Ravindran, Renuka (India, ?–?)

Ray

• Ray-Chaudhuri, Dijen K. (USA, born 1933)
• Ray, W. Harmon (?, born 1940)
• Raybould, Ethel (Australia, 1899–1987)
• Raynaud, Michel (France, 1938–2018)
• Raynaud, Michèle (?, born 1938)
• Rayner, Margaret (Britain, 1929–2019)
• Razborov, Alexander (Russia/Soviet Union, born 1963)
• Razgulin, Alexander (Russia, ?–?)
• Razmadze, Andrea (Georgia, 1889–1929)
• Read, Charles (Britain, 1958–2015)
• Read, Ronald C. (?, born 1924)
• Reason, Charles L. (USA, 1818–1893)
• Rebstein, Johann Jakob (Switzerland, 1840–1907)
• Recorde, Robert (Wales, 1510s–1558)
• Rédei, László (Hungary, 1900–1980)
• Redfield, John Howard (USA, 1879–1944)
• Redheffer, Raymond (USA, 1921–2005)
• Redner, Sidney (?, born 1951)
• Ree, Rimhak (Canada, 1922–2005)
• Reeb, Georges (France, 1920–1993)
• Reed, Bruce (Canada, ?–?)
• Reed, Coke (USA, born 1940)
• Reed, G. Mike (USA, ?–?)
• Reed, Irving S. (USA, 1923–2012)
• Reed, Michael C. (USA, born 1942)
• Rees, David (Britain, 1918–2013)
• Rees, Elmer (Wales, born 1941)
• Rees, Mary (Britain, born 1953)
• Rees, Mina (USA, 1902–1997)
• reference, Wholistic (Britain, ?–?)

Reg

• Regev, Amitai (Israel, born 1940)
• Regev, Oded (computer scientist) (Israel/USA, ?–?)
• Reghini, Arturo (Italy, 1878–1946)
• Regiomontanus (Medieval Germany, 1436–1476)
• Reich, Karin (?, born 1941)
• Reichelt, Julius (Germany, 1637–1717)
• Reichental, Tomi (Slovakia, born 1935)
• Reichstein, Zinovy (USA, born 1961)
• Reid, K. B. (?, ?–?)
• Reid, Miles (England, born 1948)
• Reid, Nancy (Canada, born 1952)
• Reid, Thomas (Scotland, 1710–1796)
• Reidemeister, Kurt (Germany, 1893–1971)
• Reiersøl, Olav (Norway, 1908–2001)
• Reiher, Christian (Germany, born 1984)
• Reimers, Nicolaus (Germany, 1551–1600)
• Reinach, Théodore (France, 1860–1928)
• Reiner, Irving (USA, 1924–1986)
• Reinert, Gesine (Britain/Germany, ?–?)
• Reinhardt, Karl (Germany, 1895–1941)
• Reinhart, Anna Barbara (Switzerland, 1730–1796)
• Reinhold, Erasmus (Germany, 1511–1553)
• Reinieri, Vincentio (Italy, 1606–1647)
• Reiss, Kristina (Germany, born 1952)
• Reiss, Michel (Germany, 1805–1869)
• Reissner, Eric (USA/Germany, 1913–1996)
• Reiten, Idun (Norway, born 1942)
• Reiter, Hans J. (Austria, 1921–1992)
• Reiziņš, Linards (Latvia, 1924–1991)
• Rejewski, Marian (Poland, 1905–1980)

Rel

• Rellich, Franz (Austria, 1906–1955)
• Remak, Robert (Germany, 1888–1942)
• Remez, Evgeny Yakovlevich (Soviet Union, 1896–1975)
• Remmert, Reinhold (Germany, born 1930)
• Remoundos, Georgios (Greece, 1878–1928)
• Rempala, Grzegorz (Poland, born 1968)
• Rempe-Gillen, Lasse (Germany, born 1978)
• Renardy, Yuriko (Australia/USA, ?–?)
• Renchen, Wu (China, ?–?)
• Rényi, Alfréd (Hungary, 1921–1970)
• Repovš, Dušan (Slovenia, born 1954)
• Reshetikhin, Nicolai (Russia, born 1958)
• Reshetnyak, Yurii (Russia/Soviet Union, born 1929)
• Resnik, Michael (USA, born 1938)
• Respighi, Lorenzo (?, 1824–1889)
• Retakh, Vladimir (Russia/USA, born 1948)
• Réthy, Mór (?, 1846–1925)
• Revelli, Filippo Antonio (Italy, born 1716)
• Revuz, Daniel (France, ?–?)
• Rey, Olivier (?, born 1964)
• Reye, Theodor (Germany, 1838–1919)
• Reynaud, Antoine André Louis (France, 1771–1844)
• Reys, Barbara (?, ?–?)
• Rezk, Charles (?, born 1969)
• Reznick, Bruce (?, born 1953)
• de Rham, Georges (Switzerland, 1903–1990)
• Rheticus, Georg Joachim (Austria, 1514–1574)
• Rhodes, Ida (USA, 1900–1986)
• Rhodes, John (USA, born 1937)
• Riazi, Abdollah (Iran, 1905–1979)

Rib

• Ribenboim, Paulo (Brazil/Canada, born 1928)
• Ribet, Ken (?, born 1948)
• Ricca, Renzo L. (Italy, born 1960)
• Riccardo, Fortunato (?, ?–?)
• Riccati, Jacopo (Italy, 1676–1754)
• Riccati, Vincenzo (Italy, 1707–1775)
• Ricci-Curbastro, Gregorio (Italy, 1853–1925)
• Ricci, Francesco (?, ?–?)
• Ricci, Michelangelo (Italy, 1619–1682)
• Ricci, Ostilio (Italy, 1540–1603)
• Rice-Wray, Lester R. (USA, ?–?)
• Rice, Henry Gordon (USA, 1920–2003)
• Rice, John R. (USA, born 1934)
• Rice, Marjorie (USA, 1923–2017)
• Richard of Wallingford (Medieval England, 1292–1336)
• Richard, Jules (France, 1862–1956)
• Richards, Paul I. (USA, 1923–1978)
• Richardson, Archibald Read (Britain, 1881–1954)
• Richardson, Lewis Fry (England, 1881–1953)
• Richardson, Roger Wolcott (Australia, 1930–1993)
• Richardson, Roland (Canada, 1875–1955)
• Richardson, Sylvia (France, ?–?)
• Richelot, Friedrich Julius (Germany, 1808–1875)
• Richert, Hans-Egon (Germany, 1924–1993)
• Richmond, Herbert William (England, 1863–1948)
• Richtarik, Peter (Slovakia, ?–?)
• Richter, Michael M. (Germany, born 1938)
• Richtmyer, Robert D. (USA, 1910–2003)
• Rickard, Jeremy (Britain, ?–?)
• Rickart, Charles Earl (?, 1913–2002)
• Rickey, V. Frederick (?, born 1941)

Rid

• Rider, Daniel (?, 1938–2008)
• Riedtmann, Christine (Switzerland, born 1952)
• Rieger, Ladislav (Czech Republic, 1916–1963)
• Riehl, Emily (USA, ?–?)
• Rieke, Carol Jane Anger (?, 1908–1999)
• te Riele, Herman (Netherlands, born 1947)
• Riemann, Bernhard (Germany, 1826–1866)
• Ries, Adam (Germany, 1492–1559)
• Riesel, Hans (Sweden, 1929–2014)
• Riesz, Frigyes (Hungary, 1880–1956)
• Riesz, Marcel (Sweden, 1886–1969)
• Rietz, Henry Louis (USA, 1875–1943)
• Rigby, John (mathematician) (England, 1933–2014)
• Riguet, Jacques (?, 1921–2013)
• Rijmen, Vincent (?, born 1970)
• Riley, Norman (England, ?–?)
• Riley, Rachel (England, born 1986)
• Riley, Robert (mathematician) (?, ?–2000)
• Ringel, Gerhard (Germany, 1919–2008)
• Ringrose, John Robert (England, born 1932)
• Rinow, Willi (Germany, 1907–1979)
• Riordan, John (mathematician) (?, 1902–1988)
• Rios, Luigi Sante Da (Italy, 1881–1965)
• Ríos, Sixto (Spain, 1913–2008)
• Rips, Eliyahu (Israel/Latvia/Soviet Union, born 1948)
• Risch, Robert Henry (USA, born 1939)
• Rissanen, Jorma (Finland, born 1932)
• Ritchie, Ken (Scotland, born 1946)
• Ritter, Imre (Hungary, born 1952)
• Rival, Ivan (Canada, 1947–2002)
• Rivault, Florence (?, 1571–1616)
• Rivière, Beatrice (France, ?–?)
• Rivière, Tristan (France, born 1967)
• Rivin, Igor (Canada, born 1961)
• Rivlin, Ronald (?, 1915–2005)
• Rivlin, Theodore J. (?, 1926–2006)

Riz

• Rizza, Giovanni Battista (Italy, born 1924)
• Robb, Richard (Scotland, 1901–1977)
• Robbins, David P. (USA, 1942–2003)
• Robbins, Herbert (USA, 1915–2001)
• Robert Gordon of Straloch (Scotland, 1580–1661)
• Robert of Chester (Medieval England, ?–?)
• Robert Russell (Ireland, 1858–1938)
• Robert, Alain M. (Switzerland, ?–?)
• Roberts, Catherine A. (USA, born 1965)
• Roberts, Fred S. (USA, born 1943)
• Roberts, Rachel (mathematician) (?, ?–?)
• Roberts, Samuel (Britain, 1827–1913)
• Roberts, Siobhan (?, ?–?)
• Robertson, Abraham (Scotland, 1751–1826)
• Robertson, Alexander Provan (Britain, 1925–1995)
• Robertson, Edmund F. (Scotland, born 1943)
• Robertson, Howard P. (USA, 1903–1961)
• Robertson, John (mathematician) (England, 1712–1776)
• Robertson, Neil (?, born 1938)
• de Roberval, Gilles (France, 1602–1675)
• Robin, Victor Gustave (France, 1855–1897)
• Robins, Benjamin (Britain, 1707–1751)
• Robins, Vanessa (Australia, ?–?)
• Robinson, Abraham (Germany, 1918–1974)
• Robinson, Claude E. (USA, 1900–1961)
• Robinson, John Alan (Britain, born 1930)
• Robinson, Julia (USA, 1919–1985)
• Robinson, Margaret M. (USA, ?–?)
• Robinson, Raphael M. (USA, 1911–1995)
• Robson, Eleanor (?, ?–?)

Roc

• Roch, Gustav (Germany, 1839–1866)
• Rocha, Alvany (?, ?–?)
• Roche, Édouard (France, 1820–1883)
• Rock, Sibyl M. (USA, 1909–1981)
• Rockafellar, R. Tyrrell (USA, born 1935)
• Röckner, Michael (Germany, ?–?)
• Rodborne, Thomas (England, ?–1442)
• Rodin, Burton (USA, born 1933)
• Rödl, Vojtěch (Czech Republic, ?–?)
• Rodnianski, Igor (Ukraine, born 1972)
• Rodrigues, Olinde (France, 1795–1851)
• Rodríguez, Diego (Mexico, 1596–1668)
• Rodríguez, Ricardo Baeza (Chile, ?–?)
• Rodríguez, Rubí (Chile, ?–?)
• Rodríguez, Sotero Prieto (Mexico, 1884–1935)
• Roe, John (Britain, 1959–2018)
• Roger of Hereford (?, ?–?)
• Rogers Jr., Hartley (USA, 1926–2015)
• Rogers, Alice (England, ?–?)
• Rogers, Chris (England, born 1954)
• Rogers, Claude Ambrose (England, 1920–2005)
• Rogers, Leonard James (England/Britain, 1862–1933)
• Rognes, Marie (Norway, born 1982)
• Rogosinski, Werner Wolfgang (Germany, 1894–1964)
• Rohault, Jacques (France, 1618–1672)
• Rohn, Karl (Germany, 1855–1920)
• Röhrl, Helmut (Germany, 1927–2014)
• Roig, Juan José Nieto (Spain, born 1958)
• Roitman, Judith (USA, born 1945)
• Rokhlin Jr., Vladimir (Russia, born 1952)
• Rokhlin, Vladimir Abramovich (Soviet Union/Russia, 1919–1984)

Rol

• Rolle, Michel (France, 1652–1719)
• Roman, Steven (USA, ?–?)
• Romanovsky, Vsevolod Ivanovich (Soviet Union, 1879–1954)
• Romberg, Werner (?, 1909–2003)
• Ronan, Mark (Britain, born 1947)
• Roney-Dougal, Colva (Britain, ?–?)
• Rongqing, Jia (China, ?–?)
• Rönström, Anna (Sweden, 1847–1920)
• Rooke, Lawrence (England, 1622–1662)
• Room, Thomas Gerald (Australia, 1902–1986)
• van Roomen, Adriaan (Belgium, 1561–1615)
• Roos, Jan-Erik (?, 1935–2017)
• Rootzén, Holger (Sweden, born 1945)
• Roper, Elmo (?, 1900–1971)
• Roque, Marian P. (Philippines, ?–?)
• Roquette, Peter (Germany, born 1927)
• Rørdam, Mikael (Denmark, born 1959)
• Rosamond, Frances A. (Australia, ?–?)
• Rosanes, Jakob (Germany/Poland, 1842–1922)
• Rosati, Carlo (Italy, 1876–1929)
• Rosellini, Ferdinando Pio (?, 1814–1872)
• Rosen, Michael (USA, born 1938)
• Rosenau, Philip (Israel, born 1946)
• Rosenberg, Alex F. T. W. (Germany, 1926–2007)
• Rosenberg, Harold (USA, born 1941)
• Rosenberg, Jonathan (USA, born 1951)
• Rosenblatt, Murray (USA, 1926–2019)
• Rosenbloom, Paul C. (USA, 1920–2005)
• Rosenblum, Lawrence J. (USA, born 1949)
• Rosenhain, Johann Georg (Germany, 1816–1887)
• Rosenhead, Jonathan (Britain, born 1938)
• Rosenhead, Louis (?, 1906–1984)
• Rosenhouse, Jason (USA, ?–?)
• Rosenlicht, Maxwell (USA, 1924–1999)
• Rosenstiehl, Pierre (France, born 1933)
• Rosenthal, Arthur (Germany, 1887–1959)
• Rösler, Margit (Germany, ?–?)
• Ross, Arnold (USA, 1906–2002)
• Ross, I. Michael (USA, ?–?)
• Ross, Kenneth A. (USA, born 1936)
• Ross, Mary G. (?, 1908–2008)
• Ross, Ronald (Britain, 1857–1932)
• Rosser, J. Barkley (USA, 1907–1989)
• Rossi, Hugo (USA, born 1935)
• Rössler, Otto (?, born 1940)
• Rost, Markus (Germany, ?–?)

Rot

• Rota, Gian-Carlo (USA, 1932–1999)
• Roth, Alice (Switzerland, 1905–1977)
• Roth, Klaus (Britain, 1925–2015)
• Roth, Leonard (England, 1904–1968)
• Rothblum, Uriel (Israel, 1947–2012)
• Rothe, Heinrich August (Germany, 1773–1842)
• Rothe, Hermann (Austria, 1882–1923)
• Rothschild, Bruce Lee (USA, born 1941)
• Rothschild, Linda Preiss (?, born 1945)
• Rotkowitz, Michael (USA, born 1974)
• Rotman, Brian (Britain, ?–?)
• Rotman, Joseph J. (USA, 1934–2016)
• Rotthaus, Christel (?, ?–?)
• Roubaud, Jacques (France, born 1932)
• Rouché, Eugène (France, 1832–1910)
• Roudenko, Svetlana (?, ?–?)
• Rouquier, Raphaël (France, born 1969)
• Rourke, Colin P. (Britain, born 1943)
• Rousseau, Cecil C. (?, born 1938)
• Rousseau, Christiane (France/Canada, born 1954)
• Routh, Edward (Britain, 1831–1907)
• Routledge, Norman (Britain, 1928–2013)
• Rowbottom, Frederick (Britain, 1938–2009)
• Rowe, David E. (?, born 1950)
• Roy, Bernard (France, born 1934)
• Le Roy, Édouard (France, 1870–1954)
• Roy, Marie-Françoise (France, born 1950)
• Roy, Samarendra Nath (India, 1906–1964)
• Royen, Thomas (Germany, born 1947)
• Royle, Gordon (Australia, ?–?)
• de Royo, Adela Ruiz (Panama, ?–2019)

Roz

• Rozenberg, Grzegorz (Poland, born 1942)
• Rozovsky, Boris (USA, born 1945)
• Różycki, Jerzy (Poland, 1909–1942)
• Ruan, Da (China/Belgium, 1960–2011)
• Rubel, Lee Albert (USA, 1928–1995)
• Rubin, Arthur (USA, born 1956)
• Rubin, Jean E. (?, 1926–2002)
• Rubin, Karl (?, born 1956)
• Rubinfeld, Ronitt (?, ?–?)
• Rubinstein, J. Hyam (Australia, born 1948)
• Rubinstein, Reuven (Israel, 1938–2012)
• Rubugunday, R. K. (India, 1918–2000)
• Ruby, Sandy (USA, 1941–2008)
• Rudd, Thomas (Britain, 1583–1656)
• Rudin, Mary Ellen (USA, 1924–2013)
• Rudin, Walter (USA, 1921–2010)
• Rudio, Ferdinand (Germany/Switzerland, 1856–1929)
• Rudnick, Zeev (Israel, born 1961)
• Rudolff, Christoph (Germany, 1499–1545)
• Rudolph, Daniel (USA, 1949–2010)
• Rudvalis, Arunas (USA, born 1945)
• Rudyak, Yuli (?, ?–?)
• Ruelle, David (Belgium, born 1935)
• Ruffini, Paolo (Italy, 1765–1822)
• Ruggles, William (USA, 1797–1877)
• Ruh, Ernst (Switzerland, born 1936)
• Rui, Li (China, 1768–1817)
• Ruiz, Mari-Jo P. (Philippines, ?–?)
• al-Rūmī, Qāḍī Zāda (?, 1364–1436)
• Rumovsky, Stepan (Russia, 1734–1812)

Run

• Rund, Hanno (?, 1925–1993)
• Runge, Carl (?, 1856–1927)
• Runge, Carl David Tolmé (Germany, 1856–1927)
• Runge, Iris (Germany, 1888–1966)
• Runnenburg, Johannes (Netherlands, 1932–2008)
• Ruskai, Mary Beth (USA, born 1944)
• Ruskey, Frank (Canada, ?–?)
• Russell, Alexander Durie (Scotland, 1872–1955)
• Russell, Bertrand (Britain, 1872–1970)
• Russell, Craig L. (USA, born 1949)
• Russell, Robert D. (Canada, ?–?)
• Russman, Isaak (Soviet Union/Russia, 1938–2005)
• Russo, Lucio (?, born 1944)
• Ruszczyński, Andrzej Piotr (Poland, born 1951)
• Rutherford, Daniel Edwin (Scotland, 1906–1966)
• Rutherford, William (England, 1798–1871)
• Rutishauser, Heinz (Switzerland, 1918–1970)
• Ruziewicz, Stanisław (Poland, 1889–1941)
• Ruzsa, Imre Z. (Hungary, born 1953)
• Rweyemamu, Justinian (Tanzania, 1942–1982)
• Ryan, Frank (USA, born 1936)
• Rybczyński, Witold (Poland, 1881–1949)
• Rychlík, Karel (Czech Republic, 1885–1968)
• Ryff, Petrus (Switzerland, 1552–1629)
• Ryll-Nardzewski, Czesław (Poland, 1926–2015)
• Ryser, Herbert John (USA, 1923–1985)
• Rytz, David (Switzerland, 1801–1868)