Nick Clausen

{{short description|Danish boxer}}

{{Use dmy dates|date=August 2021}}

Nicolaj Charles Sofus Clausen (23 May 1900 – 23 September 1989) was a Danish boxer who competed in the 1920 Summer Olympics. He was born in Copenhagen and died in Frederiksberg. In 1920 he was eliminated in the quarter-finals of the featherweight class after losing his fight to Jack Zivic.{{cite web|url=https://www.olympedia.org/athletes/1701 |title=Nick Clausen |work=Olympedia |access-date=5 August 2021}}