What Ocean Separates Greenland and Asia? None—They're Not Adjacent

No ocean separates Greenland and Asia because they are not opposite each other across a single water body.

Geographic Reality

• Greenland lies in the North Atlantic Ocean, northeast of Canada, mostly within the Arctic Circle.
• Asia is the world's largest continent, spanning from the Mediterranean to the Pacific, entirely in the Northern Hemisphere.

What Lies Between?

Traveling from Greenland to Asia involves crossing:

1. North Atlantic / Arctic Ocean (Greenland → Svalbard / Norway / Iceland)
2. European landmass or Barents/Kara Seas
3. Ural Mountains (Europe/Asia boundary)
4. Into Siberia / Central Asia

The closest Asian territory to Greenland is Russia's Arctic islands (e.g., Franz Josef Land), separated by the Barents Sea and Kara Sea (marginal seas of the Arctic Ocean).