Peter Malberg (21 September 1887 – 23 June 1965) was a Danish actor best known for his role as Onkel Anders in the Far Til Fire movies.

Their father was a haulage contractor, while their mother was of fragile health and was ill during long periods of Malberg's childhood.

Malberg debuted on 22 March 1907 at the Århus Theatre as the Jailer in Ranke viljer (Unyielding Wills).

From 1910 to 1903, Malberg played roles in 22 silent movies, including David Copperfield (1922), Morænen and Laila.

Malberg's most memorable movie role was the character of Uncle Axel which he played in eight Far til fire comedies.