Tromsø is a city located in Troms county, Norway. It serves as the administrative center for both the municipality and the county. The city is situated on the island of Tromsøya, which lies within the Tromsøysundet strait off the mainland of Northern Norway.
The city's geography is linked to surrounding areas via several key infrastructure points. The mainland suburb of Tromsdalen is connected to the city center on Tromsøya by the Tromsø Bridge and the Tromsøysund Tunnel. Additionally, the suburb of Kvaløysletta on the island of Kvaløya is connected to the city center by the Sandnessund Bridge.