Adam Frederik Oluf Arndtsen (15 December 1829 – 7 August 1919) was a Norwegian professor and physicist.
In 1859 he lost out to Hartvig Caspar Christie in a competition to succeed Lorentz Christian Langberg as an academic of physics at Royal Frederick University.
[2] In 1857, a scholarship brought him abroad to train with Wilhelm Eduard Weber (1804-1891) at Georg-August-Universität of Göttingen and Émile Verdet at the École normale supérieure in Paris.
In 1864 he was awarded the Crown Prince's gold medal (Kronprinsens gullmedalje) for the dissertation regarding the use of electricity in medicine (Om Electricitetens Anvendelse i Medicinen).
[3] He was a professor of physics teacher at the Norwegian Military Academy from 1873 until 1903.