Thilini Sudhara Jayasinghe (Sinhalese: තිලිනි සුනාරි ජයසිංහ; Tamils: திலினி சுனாரி ஜயசிங்க; born 15 January 1985) is a Sri Lankan badminton player.

Born in Peradeniya, Jayasinghe started playing badminton aged 9, and has joined the national team in 2000.

[1] She attended Mahamaya College and was named Best Sports Woman in 2004.

[2] Jayasinghe also competed for Sri Lanka at the 2008 and 2012 Summer Olympics in the women's singles event.

[3][4] She is the first woman badminton player to have ever represented Sri Lanka at the Olympic Games.