Lemaitre (pronounced French: [ləmɛtʁ] ) is a Norwegian indie electronic duo hailing from Oslo. The duo consists of members Ketil Jansen and Ulrik Denizou Lund. Jansen and Lund came together to form Lemaitre on 20 June 2010. Lemaitre is currently based in Los Angeles, California.

Since the duo's inception in summer 2010, Lemaitre has released a number of EPs, including the Relativity Series: Relativity 1, 2, 3 and Relativity by Nite; The Friendly Sound; and Singularity. The duo released their seventh EP, 1749, on 29 January 2016, and released a compilation album, Chapter One, on 2 June 2017.

In early 2021 Lemaitre released the single Trip Sitter together with Sofiloud. This was then followed by the releases of the single Sparrow with Emelie Hollow in June, the single OK Computer with RebMoe in August, and Reflection in early September. The final single, What About U, featuring Anna of the North was released on 22 October, alongside an announcement for their debut album Substellar, released 19 November 2021.