Saint-Martin Church is a Catholic church located in Mayenne, France. It has been listed as a historic monument since 1984.
The church, formerly attached to a monastery, could date from the 9th century. It became the mother church in 1463. Since then, there has been a historical rivalry with the more prosperous parish of Notre-Dame. During the Revolution, the church was closed in January 1794 and then converted into a hay barn until 1800, when it reopened.
The church has been remodeled several times over time. It was damaged during the bombings of 1944: one of the chapels was completely destroyed by a bomb, and its reconstruction, which was initially planned for after the war, was abandoned.