Kamilla Steiwer (née Olaussen; born 1993) is a Norwegian orienteering competitor who represents the club Fredrikstad SK.

[1] Competing at the 2018 World Orienteering Championships in Latvia, Steiwer placed fourth in the relay with the Norwegian team,[2] and 5th in the long distance.

[4] She competed at the 2021 World Orienteering Championships in the Czech Republic, where she placed fourth in the middle distance after a close fight for the bronze medal, two seconds behind Simona Aebersold.

[5][6] She won a bronze medal in the relay with the Norwegian team, together with Marie Olaussen and Andrine Benjaminsen.

[7] Steiwer was running the first leg in the relay at the 2024 European Orienteering Championships, winning silver medal for Norway along with Marie Olaussen and Andrine Benjaminsen.