Torre dell'Orologio, Padua, Gothic clock tower in Piazza dei Signori, Italy.

The Torre dell'Orologio is a Gothic clock tower in Piazza dei Signori in Padua, positioned between two adjacent palaces and topped with an astronomical clock. The structure features an octagonal upper section with a dome and is organized across multiple levels that housed both defensive and timekeeping functions.

The tower was built in the second half of the 14th century as the fortified eastern entrance of the Carrarese royal residence. Its present form results from works begun in 1426 under the Venetian captain Bartolomeo Morosini, culminating in the inauguration of the astronomical clock on the feast of Saint Anthony in 1437. The clock reuses the zodiac signs of Jacopo Dondi's 1344 mechanism, damaged by fire. In 1531 the triumphal arch by Giovanni Maria Falconetto was added at the base.

The clock face omits Libra because it follows the pre-Roman zodiac, in which Scorpio and Libra formed a single sign. The missing sign was removed between 1787 and 1792 by Abbot Bartolomeo Toffoli. A popular tale that the builder omitted it in protest over unpaid wages has no historical basis.

Guided visits run on Fridays and Saturdays from 9:30 to 11:45, led by Salvalarte Padova volunteers. The clock mechanism sits on the third floor inside a wooden frame and cabinet. The tower stands between the Palazzo del Capitanio and the Palazzo dei Camerlenghi, facing Piazza dei Signori.

The octagonal lantern holds a bell perhaps recast around the mid-18th century by Jacopo Cabani. The 15th-century mechanism strikes it with a hammer at every hour, the "botto", and again about five minutes later, the "ribotto".