55°11′56″N 6°39′14″W / 55.199°N 6.654°W / 55.199; -6.654 The A29 is a major road in Northern Ireland; it is mostly a single carriageway and goes through a number of main towns and connects in several places to other major roads.

The road begins in the town of Portrush, heading south for a few miles before becoming the ring road around Coleraine. The road includes a short section of dual carriageway between Lodge Road Roundabout and Greenmount as part of the shared route with the A37 where it runs west towards Limavady. At a roundabout built in 2005, just outside Macosquin, the A37 continues west while the A29 heads south towards Garvagh.

After Garvagh, the road goes through Swatragh, Maghera, Tobermore, Desertmartin and Moneymore. It then becomes Dual Carriageway as far as Cookstown, goes through Cookstown and onto Dungannon as single-carriageway where is meets the A4 and M1. The road continues south as a single carriageway towards Armagh, passing through the villages of Moy and Charlemont.

After Armagh, the road continues south towards Dundalk as a secondary route, passing through Keady and Newtownhamilton. The road then crosses the border into County Louth in the Republic of Ireland where it becomes the R177, terminating in Dundalk.

There are a number of tourist sites on or close to the A29. These include:

As of 2006, a number of improvements had been undertaken along the route, including a roundabout at the meeting with the A37, outside Macosquin to reduce delays and smoothing of hidden dips between Maghera and Moneymore.^{[citation needed]} On other parts of the Maghera-Moneymore route the surface is heavily worn and uneven.^{[citation needed]}

While cat's eyes are present to aid night-driving, they are often difficult to see and markings at the side of the road, when in 'open country' are of poor quality.^{[citation needed]}

Cookstown is a common location for traffic congestion and, during the day, contributes to lengthy delays.^{[citation needed]}