List of numbered roads in Halton Region
This article lists all of the numbered regional roads in the Regional Municipality of Halton, Ontario, Canada.
| Number | Names | Western/Southern Terminus | Eastern/Northern Terminus | Major Communities | Comments |
| Guelph Line | Fairview Street | Eramosa-Milton Townline | Burlington, Milton, Campbellville | Passes by the Mohawk Raceway | |
| Trafalgar Road | Cornwall Road | Intersection with Erin-Halton Hills Townline, Wellington CR 24, and Wellington County Road 42. | Oakville, Hornby, Georgetown | Very busy road which serves as the primary north-south artery of Oakville, and connects Oakville with Georgetown via Halton Hills. Has a 4 km break northwest of Georgetown as Highway 7 is channelled along its baseline, and continues south of Speers Road to Lakeshore Road under the jurisdiction of the Town of Oakville. | |
| Neyagawa Boulevard, James Snow Parkway | Regional Road 38 | roundabout intersection of Dublin Line/Tremaine Road/Campbellville Road/James Snow Parkway | Milton, Oakville | Currently short, but extensions are planned, and the northern extension is already under construction. Named for former provincial cabinet minister James Snow. | |
| Dundas Street | Evans Road | Winston Churchill Boulevard | Burlington, Oakville | Major artery in the southern part of Halton RM, quite busy at times. | |
| Britannia Road | Halton Regional Road 22 | Highway 407 | Milton | Originally Number 5 Sideroad until 1966. | |
| Derry Road | Milburough Line | Highway 407 | Kilbride, Milton | Originally Number 10 Sideroad until 1966. | |
| Steeles Avenue | Halton Regional Road 22 | Winston Churchill Boulevard | Milton | Brief concurrency with RR 25. Continuation of street from Peel and Toronto. Known as Upper Base Line until 1966. | |
| Campbellville Road | Milburough Line | Halton Regional Road 1 | Milton | ||
| 10th Sideroad | Halton Regional Road 3 | Halton RR 25/Peel RR 19 | Georgetown, Norval | Passes along the southern edge of Georgetown before merging with RR25 on the west end of Norval. | |
| 9th Line, Ford Drive | Cornwall Road, Highway 401 | Highway 407 and Highway 403 exchange passover, Halton Regional Road 10 | Oakville, Halton Hills | One of the main roads into Georgetown, discontinuous between Burnhamthorpe Road/William Halton Parkway and Highway 401, where Ninth Line is maintained by the City of Mississauga; has a jog at Steeles Ave. | |
| Dorval Drive | Speers Road | Halton Regional Road 38 | Oakville | ||
| Brant Street | Fairview Street | Halton Regional Road 5 | Burlington | Named for Joseph Brant. | |
| Winston Churchill Boulevard, Adamson Street, King Street | Lakeshore Road in Oakville, Highway 401 | Dundas Street, Intersection with Wellington CR 42 | Terra Cotta, Norval, Georgetown, Oakville | Shared regional road with Peel Region, but signed as Peel RR19 only. Named after Sir Winston Churchill, former British Prime Minister during the Second World War. Acts as the boundary between Peel RM and Halton RM. Discontinuous from Highway 401 to Dundas Street, as the Region line moves west and the road is fully in Peel RM. Known as East Town Line until 1966. | |
| Appleby Line | Fairview Street | Halton Regional Road 7 | Burlington | ||
| Burloak Drive | Wyecroft Road/Harvester Road | Halton Regional Road 38 | Oakville, Burlington | Burloak and Tremaine were formerly known as West Town Line before 1967. | |
| Tremaine Road | Halton Regional Road 5 | Campbellville Road | Milton, Milton Heights | Intersection at Steeles being re-routed with traffic circle further west. Burloak and Tremaine were formerly known as West Town Line before 1967. Current Tremaine Road overpass will be re-located to the east with an interchange and to align with re-routing of road south of the 401 along with the closure of Peru Road north of the 3rd Side Road. | |
| Milburough Line | Kilbride Street | Halton Regional Road 7 | Kilbride | ||
| Bronte Road, Ontario Street, Steeles Avenue, Martin Street, Main Street | Speers Road | Erin-Halton Hills Townline | Burlington, Milton, Milton Heights, Acton | Formerly Highway 25. Has a brief concurrency with RR 8. Note: Peel Regional Road 19 is also signed as Halton RR 25 on maps from the Region boundary to Terra Cotta. | |
| Burnhamthorpe Road | Halton Regional Road 4 | Sixth Line | Oakville | Continuation of street from Mississauga. It was previously called Back Concession Road in the former Halton County before 1967. Now mostly bypassed by RR40. | |
| Eramosa-Milton Townline | Halton Regional Road 1 | Highway 7 | Boundary with Wellington County | ||
| 20th Sideroad | Concession 11 | Halton Regional Road 1 | Continuation of Wellington County Road 34 | ||
| Upper Middle Road | Guelph Line | Halton Regional Road 19/Peel Regional Road 19 | Burlington, Oakville | ||
| William Halton Parkway | Halton Regional Road 25 | Halton Regional Road 13 | Oakville | Partial bypass of RR 27, with extension planned. Opened November 2020. | |
| Wyecroft Road | Burloak Drive | RioCan Burloak | Burlington, Oakville | Construction on extension and bridge to Bronte Rd. started in 2019 and is planned to be completed in 2026. |