Ruuben-Joosua Palu (born September 5, 1997) is an Estonian actor.

He graduated in 2021 from the Viljandi Academy of Culture with a major in performing arts actor (13th flight). In 2020, he starred in the short film My Dear Corpses, which won a student Oscar. As of 2022, Palu works as a theater teacher at the Pärnu School of Arts.