Haakon Andreas Olsen (18 September 1923 – 22 August 2010) was a Norwegian physicist. Olsen was born in Tromsø and finished his secondary education in 1944. He enrolled at the Norwegian Institute of Technology, first in architecture, then in technical physics and finally theoretical physics under Harald Wergeland. He graduated with the siv.ing. degree in 1950 and the degree in 1953. His specialty was elementary particle physics. Olsen resided at Gløshaugen, near the Institute of Technology. He died in August 2010.