Lamartine (originally called Seven-Mile-Creek or Seven Mile Creek) is a town in Fond du Lac County, Wisconsin, United States.

The unincorporated communities of Lamartine, Rogersville, and Woodhull are located in the town.

Peter V. Sang, an organizer of the Seven Mile Creek Community, and then its postmaster and town clerk, circulated a petition to change the name of the town from Seven Mile Creek to Lamartine, in honor of the French revolutionary, whose works and political activity had been acknowledged by the United States Government on April 26, 1848, by formal diplomatic recognition.

On June 13, 1848, a bill was offered to the First Wisconsin Legislature, to change the name of the community from Seven Mile Creek to Lamartine.

The bill was passed and signed into law by Governor Nelson Dewey on August 8, 1848.