Nithin Kamath (born 5 October 1979) is an Indian stock broker and Internet entrepreneur ^[1] known for founding Zerodha, ^{[2] [3] [4]} an online-only Indian discount stock brokerage ^{[5] [6]} with daily retail trading turnovers crossing $1 billion. ^[7] He is also the founder of Rainmatter, a Bangalore based financial technology startup fund ^[8] and incubator. ^[9]

Nithin Kamath was born into a Konkani family in Shimoga, Karnataka. His father, U.R. Kamath was an executive with the Canara Bank, and his mother, Revathi, taught veena. ^[1] As a child, he travelled across India following his father's profession, before finally settling in Bangalore in 1996, where he finished his secondary and college education. ^[10]

Kamath started trading stock markets at the age of 17, when he started managing his father's trading account.

After spending considerable time as a professional trader, he worked at a call centre for three years due to the lack of trading capital, before becoming a sub-broker for Reliance Money and finally founding Zerodha in 2010 with his younger brother, Nikhil Kamath. ^{[4] [11]}

Kamath married Seema Patil in 2008.

^[4] He is an avid poker ^[1] and basketball player, and a martial arts enthusiast. ^[10]