Aksel "Azach" Zachariassen (16 November 1898 – 6 August 1987) was a Norwegian politician, newspaper editor, secretary and writer.

He was born in Porsgrunn as a son of ship captain Aksel Zachariassen (1853–1927) from Luleå and Karen Nilsen (1860–1933) from Ulefoss.

He was also involved in revolutionary politics, and headed the Young Communist League of Norway from 1921 to 1923, while the organization was still affiliated with the Norwegian Labour Party.

Also, he was subject to deportation from the United Kingdom during a visit there in 1919, where he among others tried to rally support for the Red Guards of Finland, and met with Sylvia Pankhurst.

Norges kommunistiske ungdomsforbund gjennem 20 aar which he wrote together with Arvid G. Hansen and Eugène Olaussen.