The Municipality of Lorne (French: Municipalité de Lorne) is a rural municipality (RM) in the Canadian province of Manitoba.

The RM was created on January 1, 2015 via the amalgamation of the RM of Lorne and the villages of Notre-Dame-de-Lourdes and Somerset.

[1] It was formed as a requirement of The Municipal Amalgamations Act, which required that municipalities with a population less than 1,000 amalgamate with one or more neighbouring municipalities by 2015.

[2] The Government of Manitoba initiated these amalgamations in order for municipalities to meet the 1997 minimum population requirement of 1,000 to incorporate a municipality.

[3] In the 2021 Census of Population conducted by Statistics Canada, Lorne had a population of 2,904 living in 1,103 of its 1,199 total private dwellings, a change of -4.5% from its 2016 population of 3,041.