| Birth Date: | 26 June 1884 |
| Birth Place: | Amsterdam, Netherlands |
| Death Place: | Amstelveen, Netherlands |
Karel Meijer (June 26, 1884 in Amsterdam – December 29, 1967 in Amstelveen) was a Dutch water polo player who competed in the 1908 Summer Olympics and in the 1920 Summer Olympics.[1]
He was part of the Dutch water polo team, which finished fourth in the 1908 tournament. Twelve years later he was a member of the Dutch water polo team, which finished sixth in the 1920 tournament.[2]
He is the younger brother of Eduard Meijer.