This post is an attempted list of the largest oceans and seas on Earth. This post is a work in progress as I find more seas that belong on this list. There are 5 oceans and 16 seas listed below. Source: Wikipedia
Oceans
1. Pacific Ocean - 165 million km sq
Photo source: Wikimedia Commons, NOAA
2. Atlantic Ocean - 106 million km sq
Photo source: Wikimedia Commons, NOAA
3. Indian Ocean - 70 million km sq
Photo source: Wikimedia Commons, University of San Diego: Sattelite Geodesy
License: CC BY-SA 3.0
4. Southern Ocean - 20 million km sq
Photo source: Wikimedia Commons, Shaaz
License: CC BY-SA 3.0
5. Arctic Ocean - 14 million km sq)
Photo source: Wikimedia Commons, CIA and Wadim
License: CC BY-SA 3.0
Seas
1. Coral Sea - 4.7 million km sq
Photo source: Wikimedia Commons, Historicair
License: CC BY-SA 3.0
2. Arabian Sea - 3.8 million km sq
Photo source: Wikimedia Commons, NASA and MODIS
3. South China Sea - 3.5 million km sq
Photo source: Wikimedia Commons, NASA and Serg!o
4. Caribbean Sea - 2.7 million km sq
Photo source: Wikimedia Commons, DEMIS Mapserver and Koba-chan
5. Mediterranean Sea - 2.5 million km sq
Photo source: Wikimedia Commons, NASA and Eric Gaba (Sting)
6. Bering Sea - 2.0 million km sq
Photo source: Wikimedia Commons, DEMIS Mapserver and Koba-chan
License: CC BY-SA 3.0
7. Gulf of Mexico - 1.5 million km sq
Photo source: Wikimedia Commons, U.S. National Oceanic and Atmospheric Administration
8. Sea of Okhotsk - 1.5 million km sq
Photo source: Wikimedia Commons, NASA
9. East China Sea - 1.2 million km sq
Photo source: Wikimedia Commons, NASA and Serg!o
10. Hudson Bay - 1.2 million km sq
Photo source: Wikimedia Commons, Przemek Pietrak
License: CC BY 3.0
11. Sea of Japan - 978 thousand km sq
Photo source: Wikimedia Commons, NASA
12. Andaman Sea - 600 thousand km sq
Photo source: Wikimedia Commons, NASA
13. North Sea - 570 thousand km sq
Photo source: Wikimedia Commons, NASA
14. Red Sea - 438 thousand km sq
Photo source: Wikimedia Commons, NASA
15. Black Sea - 436 thousand km sq
Photo source: Wikimedia Commons, NASA and Jeff Smaltz
16. Baltic Sea - 377 thousand km sq
Photo source: Wikimedia Commons, NASA, SeaWiFS Project, Goddard Space Center and ORBIMAGE
