Rosthern is a town in Saskatchewan, Canada.

Rosthern may also refer to:

Rural Municipality of Rosthern No. 403, in Saskatchewan, Canada Rosthern Junior College, an independent high school in Saskatchewan, Canada Rosthern-Shellbrook, a provincial electoral district in Saskatchewan, Canada Rosthern (electoral district), a former federal riding in Saskatchewan, Canada Rosthern (provincial electoral district), a former provincial riding in Saskatchewan, Canada HMCS Rosthern, a Canadian navy corvette

See also Rostherne, a civil parish in Cheshire, England