Quaking Bridge is a bridge over the Castle Mill Stream in the English city of Oxford. It connects St Thomas' Street and Paradise Street, to the west of the stream, with Tidmarsh Lane, to the east. Oxford Castle lies to the east, and has a pedestrian entrance from Tidmarsh Lane adjacent to the bridge. To the north, the Castle Mill Stream is crossed by Pacey's Bridge and Hythe Bridge, whilst to the south it is crossed by Swan Bridge.