Ago Roo (born May 11, 1946 in Visusti, Saadjärve municipality, Tartu County) is a former Estonian actor.

He graduated from Elva Middle School in 1964 and from the Theater Arts Department of Tallinn State Conservatory (3rd year) in 1968.

He worked at the Rakvere Theater in 1968-1969 and at the Endla Theater in Pärnu from 1969-1978. In the years 1978–2009, he was an actor at the Tallinn City Theatre.

He has also acted in movies and TV series.