One of the world's most northerly film festivals kicks off for a week in mid-January, with film screenings and talks at various locations around town (there are even a few outdoor screenings for hard-core film-goers…
Includes the national reindeer-sledge championship, where skilled Sami whoop and crack the whip along the main street in Tromsø. It centres on the week surrounding Sami National Day (6 February).
The world's most northerly marathon is held one Saturday in June. In January there's also the Polar Night Half Marathon.
Six days of music of all genres. If it coincides with a Northern-Lights spectacular, you've hit the jackpot.
A long, loud weekend of electronic music in October.