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Top 5 largest seas (marginal seas, excluding oceans)

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The 5 largest seas (marginal seas, excluding oceans) by surface area: Philippine Sea, Coral Sea, American Mediterranean Sea, Arabian Sea, Sargasso Sea.

Snapshot · 2026-09-23

Today's five picks, one great list, and today's game. Free, every evening.

  1. 1

    Philippine Sea

    5,695,000 km2

  2. 2

    Coral Sea

    4,791,000 km2

  3. 3

    American Mediterranean Sea

    4,200,000 km2

  4. 4

    Arabian Sea

    3,862,000 km2

  5. 5

    Sargasso Sea

    3,500,000 km2