Mike Estep (born July 19, 1949) is a former professional tennis player from the United States.

Later he worked with Carling Bassett, Hana Mandlíková, Jana Novotná and Arantxa Sánchez Vicario.

He was a board member of the Association of Tennis Professionals from 1982 to 1989, holding the position of chairman of the ATP ranking Committee at the same time.

As a junior tennis player, Estep held a No 1 national ranking for five straight years (from 1963 to 1967).

Estep was named the Texas High School Player of the Year, and led the U.S. to the Sunshine Cup Title and played on the U.S.