Cillian Foley (born March 22, 2006) is an Irish actor and writer. He is best known for his portrayal of King Herod in Ardclough Youth Theatre's production of Salomé (2025) at the Bray One Act Drama Festival, in which he was nominated for Best Actor.

Other notable works include Ben in Click (2025), Jacob in AYT Seniors' production of [BLANK] (2025), and Michael Dara in Ardclough Dramatic Society's production of In the Shadow of The Glen (2025). He is also known for writing, directing, and starring in the short film Wine and Whining (2025).