Indo-Persian culture refers to a cultural synthesis present on the Indian subcontinent. It is characterised by the absorption or integration of Persian aspects into the various cultures of modern-day republics of Bangladesh, India, and Pakistan. The earliest introduction of Persian influence and culture to the subcontinent was by various Muslim Turko-Persian rulers, such as the 11th-century Sultan Mahmud Ghaznavi, rapidly pushed for the heavy Persianization of conquered territories in northwestern Indian subcontinent, where Islamic influence was also firmly established. This socio-cultural synthesis arose steadily through the Delhi Sultanate from the 13th to 16th centuries, and the Mughal Empire from then onwards until the 19th century. Various Indo-Muslim dynasties of Turkic, local Indian and Afghan origin patronized the Persian language and contributed to the development of a Persian culture in India. The Delhi Sultanate developed their own cultural and political identity which built upon Persian and Indic languages, literature and arts, which formed the basis of an Indo-Muslim civilization.

Persianization or Persification, is a sociological process of cultural change in which a non-Persian society becomes "Persianate", meaning it either directly adopts or becomes strongly influenced by the Persian language, culture, literature, art, music, and identity as well as other socio-cultural factors. It is a specific form of cultural assimilation that often includes a language shift. The term applies not only to cultures, but also to individuals, as they acclimate to Persian culture and become "Persianized" or "Persified".