Niels Grunenberg

{{short description|German Paralympic swimmer}}

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| name = Niels Grunenberg

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{{Medal|Country| {{GER}} }}

{{Medal|Competition| Paralympic Games }}

{{Medal|Silver| 2012 London | 100 m breaststroke SB5 }}

{{Medal|Competition| IPC Swimming World Championships }}

{{Medal|Bronze| 2013 Montreal | 100 m breaststroke SB5 }}

{{Medal|Competition| IPC Swimming European Championships }}

{{Medal|Bronze| 2014 Eindhoven | 100 m breaststroke SB5 }}

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Niels Grunenberg (born 30 March 1975) is a German Paralympic swimmer.{{Cite web|url=https://www.paralympic.org/niels-grunenberg|title=Niels Grunenberg|website=paralympic.org|access-date=25 January 2020|publisher=International Paralympic Committee}} He represented Germany at the 2008 Summer Paralympics and at the 2012 Summer Paralympics and he won the silver medal in the men's 100 metres breaststroke SB5 event in 2012.

In 2013, he won the bronze medal in the men's 100 metre breaststroke SB5 event at the 2013 IPC Swimming World Championships held in Montreal, Quebec, Canada.