Castellammare
Castellammare or Castello a Mare ( Castle by the sea ) is
- Castellammare Adriatico, a formerly independent town in Abruzzo, which was incorporated in 1927 by Pescara
- Castellammare del Golfo, a town in the province of Trapani in Sicily
- Castellammare di Stabia, a town in the province of Naples in Campania
- Castello a Mare, a fort in the harbor of Palermo
- Disambiguation