Caldiero is a comune (municipality) in the Province of Verona in the Italian region Veneto, located about 90 kilometres (56 mi) west of Venice and about 15 kilometres (9 mi) east of Verona.

Caldiero borders the following municipalities: Belfiore, Colognola ai Colli, Lavagno, San Martino Buon Albergo, and Zevio.

Caldiero was known in ancient Roman times as Calidarium, stemming from its thermal baths.

In 1233 Ezzelino III da Romano destroyed the castle.

Later Caldiero was held by the Scaligers, the Nogarola counts, the Visconti and then by the Republic of Venice Several battles were fought in the vicinity of Caldiero during the French Revolutionary Wars and Napoleonic Wars.