Muž Nula (in English transcribed as "Clockwork Men") is a song by Marika Gombitová released on OPUS in 1983.The title composed by the artist herself, and accompanied with lyrics by Kamil Peteraj, was released as the pilot track to promote the singer's fourth solo studio album Mince na dne fontán. In 1984, its official music video won an Audience Choice award in the Slovak television video chart called 5xP.