| Birth Date: | 1944 12, df=y |
| Birth Place: | Almelo, Netherlands |
| Height: | 1.89m (06.2feet) |
| Weight: | 90kg (200lb) |
| Sport: | Rowing |
| Club: | Laga, Delft |
| Show-Medals: | yes |
Alex Gerhard "Lex" Mullink (born 19 December 1944) is a retired Dutch rower who won a bronze medal in the coxed fours at the 1964 Summer Olympics.