Deagon Deviation is a major road in Brisbane, Queensland, Australia.

From its southern end the Deagon Deviation veers west and then north, skirting the western boundary of the Deagon Racecourse and approaching the Gateway Motorway.

It passes under Bracken Ridge Road and gradually turns to the north-east on its way to its northern end.

[1] Prior to the opening of the Deagon Deviation in 1979[2] the route from Deagon to the Houghton Highway was via a series of residential streets defined as part of State Route 27.

[3] In 1986, with the opening of the Deagon to Bruce Highway section of the then Gateway Arterial Road, a 1.9 km (1.2 mi) section of the northbound carriageway was removed, with traffic diverted to the new road.