Oderzo is a comune located in the province of Treviso within the Veneto region of Italy. It has a population of 20,003 and is situated in the heart of the Venetian plain, approximately 66 kilometres to the northeast of Venice.
The city is geographically defined by its location along the Monticano river, which serves as a tributary of the Livenza. It remains a notable settlement within the regional landscape of northern Italy.