Alex Crossan (born 5 April 1996), also known by the stage name Mura Masa, is a Guernsey-born electronic music producer, songwriter and multi-instrumentalist. Crossan is perhaps best known for his song "Lovesick", which reached number one on the Spotify Viral charts in the United Kingdom and the United States.

Crossan's self-titled debut album was nominated for Best Dance/Electronic Album and Best Recording Package at the 60th Annual Grammy Awards, making him the first artist to be nominated as both a musician and creative director for the same album. His remix of Haim's "Walking Away" won Best Remixed Recording, Non-Classical at the 61st Annual Grammy Awards.