| Bjarni Jónsson | |
| Fullname: | Bjarni Jónsson |
| Birth Date: | 31 May 1965 |
| Birth Place: | Iceland |
| Position: | Midfielder |
| Years1: | 1982–1990 |
| Caps1: | 114 |
| Goals1: | 15 |
| Years2: | 1991 |
| Caps2: | 18 |
| Goals2: | 0 |
| Years3: | 1992–1997 |
| Caps3: | 93 |
| Goals3: | 16 |
| Nationalyears1: | 1990 |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
Bjarni Jónsson (born 31 May 1965) is an Icelandic former footballer who played as a midfielder. He spent the majority of his playing career with KA, making more than 200 league appearances for the club, but also had a short spell with Stjarnan. In 1990, Bjarni won two caps for the Iceland national football team; he made his debut in the 4–0 win against Bermuda on 3 April and made his second and final appearance in the 1–4 defeat to the United States five days later.