Budrio (Eastern Bolognese: Bûdri) is a town and comune in the Metropolitan City of Bologna, in Emilia-Romagna, Italy; it is 15 kilometres (9 mi) east of Bologna.

Budrio is the birthplace of Giuseppe Barilli, better known under his pseudonym of Quirico Filopanti, an Italian mathematician and politician.

The area around Burdio was a Roman colony, whose territory was divided between veteran legionaries. The current town was however founded in the 10th-11th centuries AD. The church of San Lorenzo was already active in 1146. In the 14th century Cardinal Gil de Albornoz rebuilt it as a castle, of which the two large towers (1376) can still be seen, while of the walls only a small section remains.

The most notable attraction are the Bentivoglio castle (16th century) and the Villa Ranuzzi Cospi at Bagnarola. The town also houses an art gallery- Pinacoteca Domenico Inzaghi- and the churches of San Domenico del Rosario, San Lorenzo, and Santi Gervasio e Protasio.