Kim Milton Nielsen

Kim Milton Nielsen (; born 3 August 1960) is a Danish former international football referee. An IT manager by trade, Nielsen is noted for his impressive height of 1.96 m, making him taller than most players. Nielsen began refereeing at 15 years of age, as he wanted to know the Laws of Football.

At UEFA Euro 2000, Nielsen was put in charge of the Germany-Romania and Turkey-Belgium encounters, although the latter match ended in disappointment as he was forced out of the competition with a leg injury. He was replaced by Günter Benkö. He got to officiate another prestigious match as he was named as the referee of 2001 Intercontinental Cup between Bayern Munich and Boca Juniors, which ended in a victory for Bayern after extra time. The 2002 FIFA World Cup represented another milestone, as he officiated the semi-final between Brazil and Turkey.

He received another accolade after being appointed as the referee for the 2004 UEFA Champions League Final between AS Monaco and Porto at the Arena AufSchalke in Gelsenkirchen. He was on duty in Portugal as one of the 12 UEFA Euro 2004 referees.

After his performance during the 2004–05 UEFA Champions League quarter-finals between PSV Eindhoven and Olympique Lyonnais, Lyon's president Jean-Michel Aulas complained about different gifts and accolades Nielsen allegedly received from Dutch officials.

In a 2005–06 UEFA Champions League group stage match between Spanish side Villarreal and Manchester United, Nielsen showed a second yellow card, sending off Manchester United's Wayne Rooney for sarcastically clapping in his face after he had initially been shown a yellow card. 'Even sarcastic play is not allowed, the referee cannot accept that,' Nielsen said of his decision to BBC Radio 5 Live.

In 2005, Nielsen reached the then-FIFA regulated age limit of 45. He ended his refereeing career on 16 May 2006, following the last game of the Danish Superliga championship.