Ciarán Teehan (born 15 March 1999) is an Irish professional darts player who plays in Professional Darts Corporation (PDC) events.

He defeated Ross Smith 3-0 in the round of 96 before narrowly losing his second game to Mervyn King.

He reached the quarter finals of the 2019 L180 World Masters losing to Mike Warburton.

Teehan qualified in the 2021 PDC World Darts Championship, he lost his first game to Wayne Jones by 2–3.

This Irish biographical article related to darts is a stub.