Guy Goethals (born 26 December 1952) is a retired Belgian football referee.

Nilsson is also a retired football referee.

Bruno Galler (born 21 October 1946) is a retired football referee from Switzerland.

Peter Mikkelsen (born 1 May 1960) is a retired football referee from Denmark.

Heinz Aldinger (born January 7, 1933) is a retired German football referee.

Alain Sars (born 30 April 1961) is a retired French football referee.

Walter Eschweiler (born September 20, 1935), is a retired German football referee.

He is a retired football referee from Italy.

Kurt Röthlisberger (born 21 May 1951) is a retired football referee from Switzerland.

Their son, also named Valentin (born 1961), is a retired international football referee.