Tobias Halland Johannessen (born 23 August 1999) is a Norwegian road cyclist, who currently rides for UCI ProTeam Uno-X Mobility.

[3] In July 2021 he named to the Norwegian team to compete in the road race event at the 2020 Summer Olympics.

[5] He initially focussed on cyclo-cross and mountain biking before switching his focus to road racing, signing with the Uno-X development team for the 2021 season.

[6] Johannessen raced the 2022 Tour of Norway, in which he took the leader's jersey after the second stage[7] and eventually finished in fourth position, winning the Points classification.

[8] He also raced the 2022 Critérium du Dauphiné, in which he won the Young Rider Classification after finishing 10th overall, over a minute ahead of nearest challenger Brandon McNulty.