Ib Nielsen

{{short description|Danish fencer}}

{{for|the Olympic rower|Ib Nielsen (rower)}}

{{Use dmy dates|date=February 2025}}

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| name = Ib Nielsen

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| birth_date = {{birth date|1919|7|13|df=yes}}

| birth_place = Højby, Denmark

| death_date = {{death date and age|1994|11|21|1919|7|13|df=yes}}

| death_place = Copenhagen, Denmark

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| sport = Fencing

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Ib Nielsen (13 July 1919 – 21 November 1994) was a Danish épée fencer. He competed at the 1948 and 1952 Summer Olympics.{{cite web|url=https://www.sports-reference.com/olympics/athletes/ni/ib-nielsen-1.html |title=Ib Nielsen Olympic Results |accessdate=2010-06-13 |work=sports-reference.com |url-status=dead |archiveurl=https://web.archive.org/web/20110726140926/http://www.sports-reference.com/olympics/athletes/ni/ib-nielsen-1.html |archivedate=26 July 2011 }}