Siddham

Siddham may refer to:

• The South Asia Inscriptions Database, a resource for ancient and medieval inscriptions from South and Central Asia based at the British Museum, British Library and the School of Oriental and African Studies
• Siddhaṃ script, an alphabet and numeral script that originated and was used in India; now used in East Asia only
• Siddham (film), 2009 Telugu action film