The 2020 season was Kristiansund's fourth season in the Eliteserien, the top football division in Norway.
In January, Sander Lille-Løvø was promoted to the first team from Kristiansund's youth team.
On 12 June, the Norwegian Football Federation announced that a maximum of 200 home fans would be allowed to attend the upcoming seasons matches.
On 10 September, the Norwegian Football Federation cancelled the 2020 Norwegian Cup due to the COVID-19 pandemic in Norway.
On 30 September, the Minister of Culture and Gender Equality, Abid Raja, announced that clubs would be able to have crowds of 600 at games from 12 October.
|- |colspan="14"|Players away from Kristiansund on loan:
|- |colspan="14"|Players who left Kristiansund during the season