The body of water that borders Italy to the east is the Adriatic Sea.

Quick Scoop

  • The Adriatic Sea is the long, narrow arm of the Mediterranean that lies between eastern Italy and the Balkan Peninsula.
  • It stretches from the Gulf of Venice in the north down to the Strait of Otranto in the south, where it meets the Ionian Sea.
  • On its western side, the coast is Italian, while the eastern shore belongs mainly to Croatia, along with Slovenia, Montenegro, Albania, and a small part of Bosnia and Herzegovina.

So if a quiz or forum thread asks “which body of water borders Italy to the east?” , the precise answer to type in is: Adriatic Sea.

TL;DR: Italy’s eastern coastline is on the Adriatic Sea.

Information gathered from public forums or data available on the internet and portrayed here.