Family name Agasthi (Agasthi 
) , in the world, is a rare surname. The family name Agasthi is habitual in Sri Lanka, where it is a rare surname, Singapore, where it is a very rare surname, and India. Measured by absolute frequency, this name is the most popular in India, Sri Lanka, and the United States. More frequently, Agasthi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Agasthi | Canada, Sri Lanka, United States, Singapore, India |
| pradyumna agasthi researcher |
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| sweekar agasthi Indian music composer and playback singer (b. 1990) |
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