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 A43 Brackley Bypass | ||||
| Route information | ||||
| Length | 66.6 mi[1] (107.2 km) | |||
| Major junctions | ||||
| South end |  M40 near Ardley | |||
 A5 in Towcester
 A47 at Duddington | ||||
| North end |  A1 near Stamford | |||
| Location | ||||
| Country | United Kingdom | |||
| Counties | Oxfordshire Northamptonshire Cambridgeshire | |||
| Primary destinations | Northampton Kettering Corby | |||
| Road network | ||||
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The A43 is a primary route in the English Midlands and northern South East England, that runs from the M40 motorway near Ardley in Oxfordshire to Stamford in Lincolnshire. Through Northamptonshire it bypasses the towns of Northampton, Kettering and Corby which are the three principal destinations on the A43 route. The A43 also links to the M1 motorway.
The section of the road between the M40 and M1 is designated a trunk road, managed and maintained by National Highways. The remainder of the route is the responsibility of local authorities.