Łoś (Polish) or Los (Czech, Slovak, Slovenian, etc., also transliterated from Belarusian, Ukrainian, and Russian "Лось") is a surname meaning "moose" or "elk" in most Slavic languages.

People Jan Łoś (born 2000), Polish footballer Jerzy Łoś (1920–1998), Polish mathematician and logician Ludwik Łoś (1914–1995), Polish footballer Mojżesz Łoś, birth name of Morris Lewis (1888–1950), Polish-Jewish labour activist in eastern Europe and Canada Sergio Los (born 1934), Italian architect (1890–1974), Polish historian, politician, diplomat, and publicist Urszula Łoś (born 1994), Polish racing cyclist

Fictional characters Comrade Los, character from the Soviet novel and film Alitet Leaves for the Hills Engineer Mstislav Los, character from the Soviet science fiction novel and film Aelita

pl:Łoś (ujednoznacznienie)