Frederick E. Grambau (August 30, 1950 – December 13, 2017) was an American football defensive end.

He played college football for the University of Michigan from 1969 to 1972 and professionally for the Hamilton Tiger-Cats from 1973 to 1975.

A native of Ossineke, Michigan, Grambau attended Alpena High School.

[1] As a senior, Grambau started all 11 games at the defensive left tackle position for the 1972 Michigan Wolverines football team that compiled a 10-1 record, allowed opponents to score only 57 points (5.2 points per game), and finished the season ranked No.

[3] He was also selected as a starter on defense for the East team in the 1972 East–West Shrine Game in San Francisco.