Nicolas Jaar (English: , Spanish: [ˈɟʝaɾ]; né Nicolás Jaar; born January 10, 1990) is an American composer and musician. Among his notable works are the albums Space Is Only Noise (2011), Sirens (2016), and Cenizas (2020). He has also released two albums as one half of his band Darkside (Psychic, 2013, Spiral, 2021) and two further albums under the alias Against All Logic.

After folding his record label Clown & Sunset in 2013, Jaar founded Other People and has since released many experimental recordings through the imprint, including works by Lydia Lunch, Pierre Bastien, John Wall and Lucrecia Dalt. He scored Jacques Audiard's Dheepan (2015 Palme d'Or winner) and Pablo Larrain's 2019 film Ema.