English Wikipedia has a category on:
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Commons:Category
Commons:Category
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Newest and oldest pages 
Newest pages ordered by last category link update:
  1. Iapetus
  2. Great Southern Ocean
  3. Austral Ocean
  4. Arctic Sea
  5. South Sea
  6. South-Polar Ocean
  7. South Polar Ocean
  8. Southern Icy Ocean
  9. South Atlantic
  10. ocean
Oldest pages ordered by last edit:
  1. Arctic Sea
  2. Antarctic Ocean
  3. Pacific Ocean
  4. Indian Ocean
  5. Atlantic Ocean
  6. Southern Ocean
  7. Arctic Ocean
  8. Davy Jones
  9. North Atlantic
  10. South Atlantic

English names of oceans.

NOTE: This is a name category. It should contain names of specific oceans, not merely terms related to oceans, and should also not contain general terms for types of oceans.