In 1930, the club changed its name to Tromsø Idrettslag because the Norwegian Sports Association thought the club's name was too close to the name of Tromsø Gymnastics Association. However, this was only temporary, and the club changed its name to Tor in 1931. 1931 would also be the year the club won its first Northern Norwegian Cup, the highest possible achievement for a Northern Norwegian club at the time. The club beat Mo IL 3–1 in the final. The year after, the Norwegian Sports Association ruled the club could not be named Tor, and so Tromsø Idrettslag was again chosen, this time permanently. Tromsø also won its second district championship in 1932, but was eliminated in the semi-finals of the Northern Norwegian Cup. The 1930s proved to be a good decade for Tromsø, as the club won district championships in 1933, 1936 and 1937. However, sports activities came to an end in 1940 because of World War II, and the club did not play again before 1945.
in 1930 the club changed its name to tromsø idrettslag because the norwegian sports association thought the club's name was too close to the name of tromsø gymnastics association however this was only temporary and the club changed its name to tor in 1931 1931 would also be the year the club won its first northern norwegian cup the highest possible achievement for a northern norwegian club at the time the club beat mo il 3–1 in the final the year after the norwegian sports association ruled the club could not be named tor and so tromsø idrettslag was again chosen this time permanently tromsø also won its second district championship in 1932 but was eliminated in the semi-finals of the northern norwegian cup the 1930s proved to be a good decade for tromsø as the club won district championships in 1933 1936 and 1937 however sports activities came to an end in 1940 because of world war ii and the club did not play again before 1945