Buwenaka Tharindu Dullewa Dumbukola Goonathileka (born 8 May 1996) is a Sri Lankan badminton player.

He competed at the 2016 and 2019 South Asian Games and won three silver and two bronze medals.

Goonethilleka partnered with Sachin Dias and won a bronze medal at the 2016 South Asian Games.

They reached the semifinals in the 2018 Commonwealth Games but lost the bronze medal match to Goh V Shem and Tan Wee Kiong.

[3] He later represented the Sri Lankan team at the 2022 Commonwealth Games.