Luca Michlmayr (born 23 July 2002), known by the stage name Lumix (stylized as LUM!X or Lum!x), is an Austrian DJ and music producer who lives in Italy.

He is best known for his hits “Monster” (with Gabry Ponte), “The Passenger (with Ponte & D.T.E., feat. MOKABY)”, and “Thunder” (with Ponte and Prezioso). He represented Austria in the Eurovision Song Contest 2022 with the song “Halo”, alongside fellow Austrian vocalist Pia Maria.