Ortona is a coastal town and comune of Chieti province in the Italian region of Abruzzo, 42°21N 14°24E, 72 m (236 ft) above sea-level, with 22,700 inhabitants as of the 2003 census.

Ortona was the site of extremely fierce fighting between German and Canadian forces during the Italian campaign in World War II. Canadians earned the reputation as elite street fighters because of their amazing battle tactic they invented while fighting in Ortona known as Mouse Holing