The Basilica di Santa Giulia is a medieval former church in Bonate Sotto, Lombardy, northern Italy.

Built in the early 12th century, only its apse area remain today in a short plain outside the town.

It is mentioned in a letter from 1129 by Pope Honorius II as "... the church in Lesina which has not been consecrated yet".

The central apse was frescoed in 1795 by the Swiss painters Baldassarre and Vincenzo Angelo Orelli.

Notable are the sculpted capitals, with geometrical, animal or human figures, while the residual exterior decoration includes small columns and Lombard bands.