|Comune di Casacalenda|
|Province / Metropolitan city||Province of Campobasso (CB)|
|• Total||67.28 km2 (25.98 sq mi)|
|Elevation||670 m (2,200 ft)|
|Population (Dec. 2004)|
|• Density||35/km2 (91/sq mi)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
Casacalenda (Molisan dialect Casacalenna; Calena) is a comune (municipality) in the Province of Campobasso in the Italian region Molise, located about 25 kilometres (16 mi) northeast of Campobasso. As of 31 December 2004, it had a population of 2,367 and an area of 67.0 square kilometres (25.9 sq mi).
The Greek historian Polybius mentions a battle in 217 BC between the Roman army, based in Kalene, and Hannibal, based in Gerione (now a hamlet of Casacalenda). The name might have been derived from the Latin Kalendae or Kalends, the first day of the month in the Roman calendar.
Since the end of World War II until the 1970s, the town's population declined considerably due to emigration. The places of choice for these emigrants were the Canadian cities of Hamilton, Montreal and Toronto. Montreal even has its own Casacalenda Association. Duncan, British Columbia also has a sizeable community per its population.
Casacalenda is served by a railway station on the Termoli–Venafro line.