Oldřich Kaiser (born 16 May 1955) is a Czech television, film, and stage actor known mostly for his comedic roles.

He made his screen debut in Karel Kachyňa's 1973 film Láska.

Together with Jiří Lábus, he formed the comedy duo "Kaiser a Lábus", which took part in such television comedy shows as Možná přijde i kouzelník (1982)[2] and Ruská ruleta (1994).

[4] In 2004, he discovered a new species of ground beetle in Asia with entomologist and neurosurgeon Vladimír Beneš.

The insect was subsequently named Cychrus kaiseri, after the actor.