Various organizations operate vessels they refer to as Polar-class icebreakers:
- United States Coast Guard operates two Polar-class icebreakers
 - CCGS John G. Diefenbaker was originally called "CCG Polar Class icebreaker" ice breaker program for the Canadian Coast Guard
 - The Polar 8 Project, cancelled plans to build a "Polar-class icebreaker" for the Canadian Coast Guard
 - United States Coast Guard Polar Security Cutter program, frequently called the Polar icebreaker program.
 
It may also refer to the following:
- Polar Class, a set of specification from the International Association of Classification Societies (IACS)
 
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