| Kjartan Antonsson | |
| Birth Date: | 1976 9, df=yes |
| Height: | 1.90 m |
| Position: | Midfielder |
| Years1: | 1993–1997 |
| Clubs1: | Breiðablik |
| Caps1: | 36 |
| Goals1: | 1 |
| Years2: | 1998–2002 |
| Clubs2: | ÍBV |
| Caps2: | 60 |
| Goals2: | 0 |
| Years3: | 2003 |
| Clubs3: | Fylkir |
| Caps3: | 11 |
| Goals3: | 0 |
| Years4: | 2004 |
| Clubs4: | Breiðablik |
| Caps4: | 14 |
| Goals4: | 0 |
| Totalcaps: | 121 |
| Totalgoals: | 1 |
| Nationalyears1: | 1992 |
| Nationalteam1: | Iceland U16 |
| Nationalcaps1: | 4 |
| Nationalgoals1: | 2 |
| Nationalyears2: | 1993 |
| Nationalteam2: | Iceland U17 |
| Nationalcaps2: | 7 |
| Nationalgoals2: | 2 |
| Nationalyears3: | 1993–1995 |
| Nationalteam3: | Iceland U19 |
| Nationalcaps3: | 21 |
| Nationalgoals3: | 4 |
| Nationalyears4: | 2001 |
| Nationalteam4: | Iceland |
| Nationalcaps4: | 1 |
| Nationalgoals4: | 0 |
Kjartan Antonsson (born 30 September 1976) is an Icelandic businessman and former footballer who played as a midfielder.[1]
Kjartan started his senior team career with Breiðablik before starring with ÍBV from 1998 to 2002.[2] In 2004, he joined Breiðablik after spending the previous season with Fylkir.[3]
He played in one match for the Iceland national team in 2001.[4] [5]
Anton is the son of former Iceland national team member Anton Bjarnason.[6]