Norwegian Prison and Probation Officers' Union (Norwegian: Norsk Fengsels- og Friomsorgsforbund, NFF) is the largest union for employees within correctional services in Norway, encompassing both the prison service and the probation service.

The Union was established in 1918 under the name Norsk Fengselstjenestemannsforbund, but the name was changed to the current name when NFF also organized probation officers.

NFF joined the Norwegian Confederation of Trade Unions (LO) in 1946.

[3] NFF publishes the trade union magazine "NFF-magasinet".

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