About National Submarine Day

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National Submarine Day .

Dates of National Submarine Day

2026 USA Saturday, April 11thNational Submarine Day

2025 USA Friday, April 11thNational Submarine Day

2024 USA Thursday, April 11thNational Submarine Day

2023 USA Tuesday, April 11thNational Submarine Day

2022 USA Monday, April 11thNational Submarine Day

Summary

Find out the dates, history and traditions of National Submarine Day

Did you know? In 1991 a youth group in Denmark wrote to Gorbachev of Russia to ask for a free submarine. He said yes, and three years later they received a 76 meter (250 ft) submarine.

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National Submarine Day

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