Jämjöhalvan is a community running event in Jämjö, Sweden, organized by Team Blekinge LF. It features multiple distances, including children's races and a half marathon, along with a relay named Jämjöhallenstafetten. The finish line and event hub are located at Jämjö Kunskapscentrum.
The course consists of laps around Jämjö, noted for being easy to run and spectator-friendly. It caters to first-time runners, club athletes, families, and teams. The half marathon can also serve as a seeding race for larger events like Göteborgsvarvet, where a good performance may improve a participant's starting position.