Nemo Mettler (born 3 August 1999), known mononymously as Nemo, is a Swiss musician and singer-rapper who plays the violin, piano and drums. They were the first openly non-binary act to represent Switzerland in the Eurovision Song Contest, which they did in 2024 with the song "The Code", going on to win. Nemo was the first openly non-binary artist to win the contest, and the third winner representing Switzerland (following the 1956 and 1988 competitions).