Jiří Lábus (born 26 January 1950, in Prague) is a Czech actor. His brother is the Czech architect Ladislav Lábus.In 1973, he graduated from the Academy of Performing Arts in Prague and joined the theatre Studio Ypsilon, where he remains employed to this day. He also appeared several times as guest actor in other theatres (National Theatre,

Theatre Viola, Theatre Ungelt).

He performed several roles in both television and film. He gained

popularity in Germany for his role of evil wizard Rumburak in the TV series Arabela. In the 1980s, he gave his voice to a stuffed moderator called Jů in the popular children's TV show Studio Kamarád. He also gave his voice to Marge Simpson in the Czech adaptation of The Simpsons, to the narrator of TV series M.A.S.H., and to ground sloth Sid in Ice Age.

Together with Oldřich Kaiser, he performed as a comedy duo "Kaiser a Lábus", which, in particular, took part in the TV comedy shows Ruská ruleta (Russian Roulette, 1994) and Možná přijde i kouzelník ("Perhaps a Magician Will Come Too", 1982).