悉达医学（泰米尔语：சித்த மருத்துவம் 或 தமிழ் மருத்துவம்，英语：Siddha medicine），起源自印度南部泰米尔纳德邦的传统医学，为古印度医学三大传统之一。其历史可能超过一万年，是人类历史上最悠久的医学传统之一。他们尊崇投山仙人为其始祖，他将悉达医学教授给室建陀，之后流传至今。

印度承认悉达医学与阿育吠陀医学为合法的传统医学疗法，并投入许多资源对它进行研究。

Siddha Medicine (Tamil Citta- or Tamiḻ-maruttuvam) is a system of traditional medicine originating in Tamil Nadu in South India.

Traditionally, it is taught that the siddhars laid the foundation for this system of medication. Siddhars were spiritual adepts who possessed the ashta siddhis, or the eight supernatural powers. Agastya is considered the first siddha and the guru of all siddhars; the siddha system is believed to have been handed over to him by Murugan, son of Shiva and Parvati.