Arnold Holmboe (11 March 1873 – 27 July 1956) was a Norwegian politician for the Liberal Party.

He was born in Malm as the son of farmer Anton Christian Holmboe (1839–1911) and his wife Elen Berthine Arntsdatter Stjernen (1849–1902).

[3] He was elected to the Norwegian Parliament in 1922, representing the Market towns of Nordland, Troms and Finnmark.

However, in July 1924 Holmboe returned as Minister of Finance and Customs in the first cabinet Mowinckel.

[3] As a part of the legal purge in Norway after World War II, Holmboe was a member of the Undersøkelseskommisjonen av 1945.