Mārcis Ošs (born 25 July 1991) is a Latvian professional footballer who plays as a centre-back for RFS and the Latvian national team.

On 31 August 2021, he joined Lausanne Ouchy in the Swiss Challenge League on loan.

[2] Ošs was named in Latvia's squad for the 2016 Baltic Cup.

He scored his first international goal for his country in a match against Austria on the 19th of November, 2019 in a UEFA 2020 qualification game, which was also a winning goal as match ended 1-0.

This biographical article relating to Latvian football is a stub.