Mark Veens is a swimmer who has competed for the Netherlands. He competed at the 1996, 2000, and 2004 Summer Olympic Games. At his third Games in 2004, he swam through the lead-off leg in the heats of the 4x100 metres freestyle relay before Pieter van den Hoogenband replaced him on the Dutch men's team that snared a silver with a national record time (3:14.36) in the final round.
Olympic Results[]
| Year | Event | Rank |
|---|---|---|
| 1996 | Men's 4x100m freestyle relay | 5th |
| 2000 | Men's 4x100m freestyle relay | DQ |
| Men's 4x100m medley relay | 4th | |
| 2004 | Men's 4x100m freestyle relay | 
|
1996[]
| Discipline | Round | Time | |
|---|---|---|---|
| 4x100 metres freestyle relay | Heats | 3:20.16 (49.94 split) |
NR |
| Final | 3:19.02 (50.66 split) |
NR |
2000[]
| Discipline | Round | Time | |
|---|---|---|---|
| 4x100 metres freestyle relay | Heats | DQ (49.38 split) | |
| Final | Did not advance | ||
| 4x100 metres medley relay | Heats | 3:40.10 (49.13 split) |
|
| Final | 3:37.53 (Reserve) |
NR | |
2004[]
| Discipline | Round | Time | |
|---|---|---|---|
| 4x100 metres freestyle relay | Heats | 3:16.42 (49.73 split) |
|
| Final | 3:14.36 (Reserve) |
NR |