Théo Mexmain (b. June 22, 2002), known mononymously as theo, is an experimental rap/ambient artist from France.

He often collaborates with German beat producer ZYROM, who mixes and masters Theo’s songs as well. Theo has also collaborated with many artists such as Kill Ebola, Saint Sleep, nAvvvi, Dytenna, ELE, D'Haelo, etc.

He is also founder of the trip-hop project Digital Faceless performing as Faceless Humanoid, which was formed in late 2020, and a member of music collective MAKE FAMILY NOT FRIENDS formed in 2021.