| Willi Kaidel | |
| Birth Name: | Wilhelm Kaidel |
| Birth Date: | 20 April 1912 |
| Birth Place: | Schweinfurt |
| Death Place: | Schweinfurt |
| Sport: | Rowing |
| Club: | Schweinfurter Ruder-Club Franken von 1882 Skuller-Zelle, Berlin |
Wilhelm Kaidel (20 April 1912 – 2 April 1978), also known under his nickname Bubi, was a German rower who competed in the 1936 Summer Olympics.
Kaidel was born in Schweinfurt in 1912.[1] He won the silver medal with his partner, Joachim Pirsch, in the 1936 Olympic double sculls competition. His son, Siegfried Kaidel, has since 2008 been the president of the German rowing association.