Toivo Maimets (born 29 December 1957 in Tartu) is an Estonian biologist and cell biology professor at the University of Tartu.
From 2003 to 2005 he was the Minister of Education of Estonia, representing the Res Publica Party.
In 1984 he received a Candidate of Sciences degree at Moscow State University in molecular biology.
His brother, Matti Maimets, is the head of the Infection Department at the Tartu University Clinic.
His father, Olev Maimets was a professor of anatomy at the University of Tartu.