Sanskrit epigraphy is the study of ancient inscriptions in Sanskrit. The inscriptions offer insight into the linguistic, cultural, and historical evolution of South Asia and its neighbors. Early inscriptions, such as those from the 1st century BCE in Ayodhya and Hathibada, are written in Brahmi script and reflect the transition to classical Sanskrit. The Mathura inscriptions from the 1st and 2nd centuries CE, including the Mora Well and Vasu Doorjamb inscriptions, represent significant contributions to the early use of Sanskrit, often linked to Hindu and Jaina traditions.
The turning point in Sanskrit epigraphy came with the Rudradaman I inscription from the mid-2nd century CE, which established a poetic eulogy style later adopted during the Gupta Empire. This era saw Sanskrit become the predominant language for royal and religious records, documenting donations, public works, and the glorification of rulers. In South India, inscriptions such as those from Nagarjunakonda and Amaravati illustrate early use in Buddhist and Shaivite contexts, transitioning to exclusive Sanskrit use from the 4th century CE.
Sanskrit inscriptions extended beyond South Asia, influencing Southeast Asia from the 4th century CE onward. Indic scripts adapted for Sanskrit were found in regions like Vietnam, Malaysia, Indonesia, and Cambodia, where they evolved into local scripts such as Khmer, Javanese, and Balinese. These inscriptions highlight the spread of Indian cultural and religious practices.
By the classical period, Sanskrit inscriptions across stone, metal, and other materials became central to documenting royal achievements, religious activities, and societal developments. The decline of Sanskrit epigraphy coincided with the rise of regional languages in inscriptions, yet its legacy endures in the historical and cultural records it preserved.