Porpoise class submarine can refer to:
- Grampus-class submarine, six British submarines launched in the 1930s, sometimes called the Porpoise class
- British Porpoise-class submarine, eight submarines launched in the 1950s
- United States Porpoise-class submarine, ten submarines launched in the 1930s
This disambiguation page lists articles associated with the title Porpoise-class submarine.
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