Los is a locality situated in Ljusdal Municipality, Gävleborg County, Sweden with 332 inhabitants in 2020.

[1] The village is known for its 18th-century cobalt mine, where Axel Fredrik Cronstedt discovered the chemical element of nickel in 1751.

An 8-kilometre-wide crater on Mars was officially named after this village in 1979.

The crater is located at 35.4°S and 76.3°W on the Martian surface.

This article about a location in Gävleborg County, Sweden is a stub.