Will Arnett is currently dating supermodel Carolyn Murphy. They started dating after Arnett quietly split from his girlfriend Alessandra Brawn in late 2024. Arnett and Murphy have been seen together publicly since then, including attending events like a play in London and New York Fashion Week in 2025. Arnett, 55, and Murphy, 51, appear happy together as a couple while Arnett continues to co-parent with his former partner Brawn.