Marathons in Northern Ireland
Northern Ireland has one marathon in our database in United Kingdom, centred on Belfast. Belfast Marathon typically draws around 2,200 finishers. Browse the races below for course maps, elevation profiles, typical weather, and practical race-day detail to help you choose your next start line. Plan by month on our marathon calendar or filter by country and region.
Nearby Marathons
Other races closest to Northern Ireland.
Dublin, County Dublin, Ireland· 142 km away
Dublin Marathon
The Dublin Marathon is one of the world's largest marathons, drawing approximately 20k finishers on an urban road in Dublin, Ireland. The course starts in Fitzwilliam Square and finishes on Merrion Square. The route passes Trinity College, Phoenix Park, the Liffey quays, and Christ Church Cathedral. Mostly flat with gentle undulations on Liffey bridge crossings.
Next race: Sunday, 25 October 2026
Kildare, County Kildare, Ireland· 173 km away
Thoroughbred Run Kildare Marathon
The Thoroughbred Run Kildare Marathon draws approximately 1,200 finishers each June on a town and rural road in Kildare, Ireland. Its horse-country theme and National Stud passage give it a uniquely Kildare identity. The route passes the Irish National Stud, horse-country roads, and open county Kildare stretches. The Irish National Stud, horse-country roads, and open county Kildare stretches give June's race a uniquely equestrian identity on largely flat terrain.
Next race: Sunday, 6 June 2027
Llanberis, Wales, United Kingdom· 202 km away
Marathon Eryri
The Marathon Eryri draws approximately 2,500 finishers each October on a mountain road in Llanberis, United Kingdom. It is one of the UK's iconic tough road marathons and rewards strength more than pace ambition. The course passes mountain lakes, steep Welsh road sections, and dramatic Snowdonia views almost throughout. Expect significant climbs on this hilly course.
Next race: Sunday, 4 October 2026
Edinburgh, Scotland, United Kingdom· 229 km away
Edinburgh Marathon
The Edinburgh Marathon is one of the world's largest marathons, drawing approximately 30k finishers on an urban road in Edinburgh, United Kingdom. The course starts in Edinburgh and finishes in Musselburgh on the coast — point-to-point. Hilly only in the first few miles leaving Edinburgh.
Next race: Sunday, 23 May 2027
Chester, England, United Kingdom· 253 km away
Chester Marathon
The Chester Marathon attracts about 5,000 finishers each October through England's Roman walled city. The course passes the Eastgate Clock, Chester Cathedral, the Roman walls, and the Dee River on flat Cheshire terrain. October autumn weather and the historic Roman-heritage setting make it one of northwest England's most popular marathons.
Next race: Sunday, 2 May 2027