Gawler Bypass is a major north–south route in the outer northern suburbs of the city of Adelaide, South Australia, connecting Main North Road to the Sturt Highway, bypassing Gawler.

The route was built in 1963 in an attempt to redirect traffic on the national highway out of Gawler town centre.

[3] It was first built as a single two-lane carriageway around the town in 1963, with at-grade intersections, and carried 3,000 vehicles per day.

[4] It ended at a tee-junction with Main North Road at the southern end, and followed an alignment that included what is now the southbound on-ramp and Brereton Road, Jack Cooper Drive over the Winckel Bridge,[5] and Paternoster Drive to the railway bridge.

The road was rebuilt in the mid-1980s as a dual carriageway, with grade-separated intersections at the southern end in a new alignment, with new bridges over the Gawler River.