Concordia Sagittaria is a town and comune in the Metropolitan City of Venice, Veneto, Italy.

The town was founded in 42 BC as Iulia Concordia by the Romans, where the Via Annia and the Via Postumia crossed each other.

The establishment of the Diocese of Concordia dates from c. 380 AD.

[3] After the fall of the Western Roman Empire it was part of the Lombard duchy of Cividale, and later was first in the March of Friuli and then in the Patriarchate of Aquileia.

In 1838, it was separated from Friuli to be included in the province of Venice.