World on a Wire is a 1973 German science fiction television serial, starring Klaus Löwitsch and directed by Rainer Werner Fassbinder. Shot in 16 mm, it was made for German television and originally aired in 1973 in ARD as a two-part miniseries. It was based on the 1964 novel Simulacron-3 by Daniel F. Galouye. An adaptation of the Fassbinder version was presented as the play World of Wires, directed by Jay Scheib, in 2012.

Klaus Löwitsch was a German actor, best known in Germany for his starring role in the television detective series Peter Strohm.