Frank Probasco Bohn (July 14, 1866 – June 1, 1944) was a politician from the U.S. state of Michigan.

Bohn was born in Charlottesville, Indiana, where he attended public high school.

He was an unsuccessful candidate for re-election to the 73rd Congress in 1932, losing in the general election to Democrat Prentiss M. Brown.

After leaving Congress, Bohn was a member of the Michigan State Hospital Commission from 1935 through 1937.

Bohn died at the age of seventy-seven in Newberry, Michigan and is interred there at Forest Home Cemetery.