Omar-S, also credited as Alex “Omar” Smith, is a Detroit house and techno producer from the United States. He works under several names, including Omar S, Oasis and Alex. O. Smith.

He runs the FXHE label and releases his own music through it, along with some collaborative recordings. His work is associated with Detroit house and techno, and he is mentioned alongside producers such as Theo Parrish and Moodymann.