John Joseph Maurer Jr. (July 11, 1922 – March 31, 2019) was an American politician and airline pilot from Kenosha, Wisconsin.

Maurer's career in politics began with his term as a member of the Pleasant Prairie Board of Supervisors, from 1961 to 1963.

Maurer ran for the Wisconsin Senate for the first time in 1972, but lost in the Democratic Primary to Doug La Follette.

Maurer ran for the newly-created role of Kenosha County Executive in 1982, but was defeated by Gilbert Dosemagen.

[2] In honor of his accomplishments as Secretary, the Department of Veterans Affairs named a building after him (Maurer Hall) in Union Grove.