| Johan Aantjes | |
| Birth Date: | 6 May 1958 |
| Birth Place: | Utrecht, Netherlands |
| Strokes: | Water polo |
Johan Aantjes (born May 6, 1958, in Utrecht) is a former water polo player from the Netherlands, who finished in sixth position with the Dutch national men's team at the 1984 Summer Olympics in Los Angeles, California.[1] Later on, from 1999 until 2003, Aantjes was the head coach of the Dutch Men's Squad. He resigned in the spring of 2003 after the Netherlands finished in a disappointing eleventh position at the 2003 Men's European Water Polo Championship in Slovenia, but returned to the job in 2006.