Kandahar, Organized hamlet in southeastern Saskatchewan, Canada

Kandahar is a special service area in the Rural Municipality of Big Quill No. 308, Saskatchewan, on Highway 16 near Wynyard. It lies by the southern shore of Big Quill Lake, Canada's largest inland saltwater lake. In 2021 it had 10 residents in 8 private dwellings over 0.46 km2.

Canadian Pacific Railway executives named the settlement in 1909 for a British military victory by General Roberts in Kandahar, Afghanistan. The rail line from Sheho reached the district that same year. Kandahar became a village in 1913 after a petition from its inhabitants, and its post office was spelled Candahar from 1910 to 1913.

The initial settlers of the Kandahar district came from Iceland or had Icelandic heritage, with many arriving from the Argyle settlement in Manitoba.

The hamlet is situated on private residential land in a sparsely populated area. Visitors should come prepared as services and facilities are limited in this rural setting.

The first postmaster, Thorvidur Halldorson (born Þorviður Magnússon), was an Icelandic immigrant appointed in 1910, and from 1910 to 1913 the post office was spelled Candahar. A printing press, Prentsmiðja A. Helgasonar, was run by bookbinder Andres Helgason (1867–1939).