What is "casaletto"

Casaletto may refer to the following communes in Italy:

• Casaletto Ceredano, in the province of Cremona
• Casaletto di Sopra, in the province of Cremona
• Casaletto Lodigiano, in the province of Lodi
• Casaletto Spartano, in the province of Salerno
• Casaletto Vaprio, in the province of Cremona