Tõnu Mikiver (August 2, 1943 Loksa – March 21, 2017 Tallinn) was an Estonian actor.
In 1965 he graduated from the Tallinn State Conservatory's Performing Arts Department. From 1965 until 1977, he worked at Estonian Youth Theatre and from 1977 until 2007, at the Estonian Drama Theatre. Besides theatre roles he has played also in several films.
His older brother was actor Mikk Mikiver.
