Thusitha Jayasundera (born 1971) is a Sri Lankan actress based in the United Kingdom.
Thusitha played Tushura 'Tash' Bandara in the BBC Hospital Drama Holby City for three years. She later played Ramani DeCosta in the ITV1 police drama The Bill.
She has appeared in the National Theatre adaptation of Michael Morpurgo's novel, War Horse. In 2009 she appears in the play "Dreams of Violence"* by Stella Feehily for Out of Joint and Soho Theatre.