The Battle of Chioggia was naval battle fought in the lagoon off of Chioggia, Italy, in June 1380 between the Venetian and the Genoese fleets, who had captured the little fishing port in August the preceding year. The port was of no consequence, but its location at the very mouth of the Lagoon threatened Venice at her very doorstep. The Venetians, under Vettor Pisani, were victorious, and both captured the town and turned the tide in the war in their favor. A peace treaty signed in 1381 in Turin gave no formal avantage to Genoa or Venice. But it spelled the end of their long competition: Genoese shipping was not seen in the Adriatic after Chioggia.

Fernand Braudel sets the end of sporadic warfare between the two early centers of capitalist empire as a result of the economic retrenchment of the 14th century: "Perhaps the answer is that only prolonged prosperity and a rising tide of trade had made it possible to indulge for so long in battles which were fierce but not in the end mortal,.. Both major and minor wars had become too expensive a luxury. Peaceful coexistence would have to be the rule." (The Perspective of the World 1984 p. 118).