Osler is a town in the Canadian province of Saskatchewan, founded in the 1890s.

The community was named after Sir Edmund Boyd Osler (1845–1924), who was an Ontario-based explorer, railroad financier, and Member of Parliament.

The town has a library, seniors' centre, volunteer fire department, gas station, grocery store, first responders, leisure centre, two schools, and four churches.

Osler was built along the historic Qu'Appelle, Long Lake and Saskatchewan Railroad after surveying starting in 1890 by the engineering firm of Osler, Hammond and Nanton.

[6] By the 1970s the railroad station had fallen into disuse and it was demolished by Canadian National Railway in 1973.