| Corney Swanepoel | |
| Nationality: | New Zealander |
| Strokes: | Butterfly |
| Birth Date: | 1986 3, df=yes |
| Birth Place: | Potchefstroom, South Africa |
Corney Swanepoel (born 17 March 1986 in Potchefstroom, South Africa) is a butterfly swimmer from New Zealand. He swam for New Zealand at the 2004 and 2008 Olympics.
At the 2008 Olympics, he swam the 100 fly, where he finished 12th, and swam on New Zealand's 5th-place finishing 4 × 100 medley relay.
He holds the New Zealand Records in the 50m Butterfly (both long course and short course) and 100m Butterfly (both long course and short course).