Tharindu Ratnayake (born 18 April 1996) is a Sri Lankan cricketer. He made his first-class debut for Sinhalese Sports Club in the 2015–16 Premier League Tournament on 26 December 2013. In March 2018, he was named in Dambulla's squad for the 2017–18 Super Four Provincial Tournament. In November 2021, he was selected to play for the Dambulla Giants following the players' draft for the 2021 Lanka Premier League. In July 2022, he was signed by the Dambulla Giants for the third edition of the Lanka Premier League.