Holloway Road is a road in London, 3 kilometres (1.9 mi) in length. It is one of the main shopping streets in North London, and carries the A1 road as it passes through Holloway, in the London Borough of Islington. The road starts in Archway, near Archway Underground station, then heads south-east, past Upper Holloway railway station, Whittington Park, past the North London campus of London Metropolitan University near Nag's Head, past Holloway Road Underground station, and the main campus of the university, and then becomes Highbury Corner, near Highbury & Islington station.

The A1, also known as the Great North Road, is the longest numbered road in the United Kingdom, at 410 miles (660 km). It connects London, the capital of England, with Edinburgh, the capital of Scotland. The numbering system for A-roads, devised in the early 1920s, was based around patterns of roads radiating from two hubs at London and Edinburgh. The first number in the system, A1, was given to the most important part of that system: the road from London to Edinburgh, joining the two central points of the system and linking the UK's (then) two mainland capital cities. It passes through or near north London, Hatfield, Welwyn Garden City, Stevenage, Baldock, Letchworth Garden City, Biggleswade, Eaton Socon, Buckden, Peterborough, Stamford, Grantham, Newark-on-Trent, Retford, Doncaster, Pontefract, York, Wetherby, Ripon, Darlington, Durham, Gateshead, Newcastle upon Tyne, Morpeth, Alnwick and Berwick-upon-Tweed.