Johannes Weißenfeld (born 19 August 1994) is a German former representative rower.

[3] 2013 saw Weißenfeld move into the German U23 men's eight which finished in sixth place at the World U23 Rowing Championships and then in 2014 a coxless four which took the silver medal at the U23 World Championships in Linz, Austria.

[3] Weißenfeld in 2015 was elevated to the German senior squad and a coxless four which competed at World Rowing Cups and took fifth place at the 2015 World Rowing Championships in Aiguebelette.

[3] 2016 saw him vying for a seat in the German men's eight and in 2017 he secured the bow seat and held it throughout their dominant season campaign, winning gold at the European Championships, two World Rowing Cups and ultimately at the 2017 World Rowing Championships in Sarasota, Florida where the German eight were crowned as world champions.

[3] There were a handful of changes to the German eight in 2019 but Weißenfeld stayed in the bow end for another successful international season which culminated in his third successive world championship title at the 2019 World Rowing Championships in Ottensheim.