Gudbrand Helenus Hartmann (17 June 1832 – 30 April 1900) was a Norwegian schoolteacher, rector and civil servant.
[2] Hartmann worked as schoolteacher in Larvik from 1857 to 1875.
From 1875 he was rector at a secondary school in Tromsø, and from 1886 in Skien.
He was decorated Knight of the Order of St. Olav in 1889.
This Norwegian biographical article is a stub.