| Birth Date: | 8 October 1984 |
| Ma Jianjun | |
| Weight: | 185kg (408lb) |
| Height: | 195cm (77inches) |
| Birth Place: | Baise, Guangxi |
Ma Jianjun (born 8 October 1984 in Baise, Guangxi) is a male Chinese water polo player who was part of the gold medal winning team at the 2007 National Championships. He competed at the 2008 Summer Olympics.[1]