Voldemar Kuslap (born September 24, 1937) is an Estonian opera and operetta singer (baritone) and occasional actor.

He was born in 1937 in the city of Gdov in the RSFSR. In 1968, he graduated from the Tallinn State Conservatory. From 1965 to 2010, he sang in the choir of the Estonia Theatre. In total, he has done over 90 roles of opera and operettas. He has also appeared in several feature films, including Mis juhtus Andres Lapeteusega? (1966), Mehed ei nuta (1968), Valge laev (1970), Ooperiball (1974) and several television films and series.