Frederick George Jacob Hahn (3 November 1911 – 5 February 1963) was a Social Credit party member of the House of Commons of Canada. He was born in Killaly, Saskatchewan and became a business executive, merchant, principal and teacher by career.

He was first elected at the New Westminster riding in the 1953 general election. He was re-elected there for a second and final term in the 1957 election.^[2] In 1958, Hahn was defeated by William McLennan of the Progressive Conservative party.

Hahn ran to succeed Solon Low at the 1961 Social Credit leadership convention but came in third. A few weeks prior to the convention, he unsuccessfully campaigned for another Parliament seat in a 29 May 1961 by-election at Esquimalt—Saanich. He placed fourth with 16% of the vote. He subsequently ran unsuccessfully in the 1962 election at Vancouver Centre.