| Antti-Jussi Karnio | |
| Birth Date: | 1978 3, df=y |
| Birth Place: | Finland |
| Position: | Goalkeeper |
| Currentclub: | JJK |
| Clubnumber: | 31 |
| Years1: | 2006 |
| Years2: | 2007–2008 |
| Years3: | 2009– |
| Clubs3: | JJK |
| Caps1: | 1 |
| Caps2: | 27 |
| Caps3: | 3 |
| Goals1: | 0 |
| Goals2: | 0 |
| Goals3: | 0 |
| Pcupdate: | 12 October 2009 |
Antti-Jussi Karnio (born 14 March 1978) is a Finnish football player currently playing for JJK.