Running a half marathon in Ireland isn't just about the miles.
It's also about soaking up the rolling green landscapes, the salty sea air and the sound of the locals cheering you on.
Ireland offers some of the most scenic and well-organised half marathons around. From riverside runs to epic coastal trails, scenery-wise, this is the country that has it all.
Top Ten Half Marathons in Ireland
Whether you're a keen runner looking to set a new PB, or you have your eyes on a new medal and a post-race pint, here are some of the best half marathons in Ireland.
1. Dublin Half Marathon
When?: Sunday 21st September 2025 - sold out, but one to watch for 2026.
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Ireland's lively capital has a brand new half marathon for 2025.
Dublin City Half Marathon gives runners the chance to wind through its famous streets and soak up the atmosphere of one of Europe's friendliest cities.
The run starts at 8:30am on O'Connell Street and takes runners out through the north of the city. The route then weaves through the likes of Ballybough, Whitehall and Seville Place, before finishing up back in the centre of Dublin.
There's bound to be loads of local support and a buzzing finish line right in the city centre. Plus plenty of post-race pubs to celebrate in with a Guinness or two. Sláinte!
2. Cork City Half Marathon
When?: Sunday 1st June 2025.
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With enthusiastic supporters, a fast course and one of the best post-race atmospheres around, Cork City Half is a must for any runner considering a half marathon in Ireland.
Cork is known for its warm and welcoming people. And this race is no exception, with phenomenal crowd support to help the miles fly by.
The route takes you through the heart of the city, past historic landmarks and along the scenic River Lee.
Plus, once you cross the finish line, you can explore the fantastic food scene of the city known as Ireland's food capital.
3. Half of the Head - Kerryhead Half Marathon
When?: Saturday 14th June 2025.
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Don't fancy a busy city-based half marathon? The Half of the Head Kerryhead Half takes you off-road through the untamed beauty of the Wild Atlantic Way.
If you like your running with a side of scenery, this one's for you.
The route is tough, featuring challenging trails and steep climbs. But the reward is so worth it. Panoramic views of mountains, lakes and beautiful coastline make for an unforgettable experience.
It's the perfect event for adventure-seekers looking to test their endurance amid jaw-dropping scenery.
4. Galway Bay Half Marathon
When?: Saturday 4th October 2025.
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Picture the scene - you're running along the Galway coastline with the sea breeze in your hair and the smell of fish and chips tempting you to slow down.
Sounds good, right? The Galway Bay Half is one of the most scenic races in Ireland, with a relaxed, welcoming vibe.
The route is mainly flat, making it perfect for beginners, as well as experienced runners gunning for a PB or just a beautiful race.
The picturesque setting makes it one of the most enjoyable races around, with the vibrant streets of Galway awaiting at the finish line.
Expect some of the best live music and craic the country has to offer.
5. Limerick Half Marathon
When?: Sunday 4th May 2025.
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The Limerick Half Marathon is another one known for its flat, fast course – ideal for those looking to smash a PB.
The race is part of a city-wide running festival. So you can expect a great community of crowd support to help keep you motivated along the way.
Limerick itself is a great city to explore post-race, with medieval landmarks and a fantastic riverside setting.
6. Waterford Viking Half Marathon
When?: Sunday 22nd June 2025.
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Beginning in the heart of Ireland's oldest city, the Waterford Viking Half Marathon mixes history with scenery.
Set to celebrate its 13th anniversary in 2025, the race takes participants past Viking-era landmarks. It follows the River Suir before heading off into the Waterford countryside.
Expect rolling hills, lush green pastures and historic sites.
Runners will also encounter Mount Congreve Gardens, which will be at their finest and most colourful in mid-June.
The event also contributes to the RLNI and its efforts to keep people safe in the waters around the Irish coast.
7. Wicklow Half Marathon
When?: Sunday 23rd March 2025
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Want hills? You've got them. This is a half marathon for those who love a challenge. Hailed as one of the tougher runs in Ireland, Wicklow Half Marathon is not for the faint-hearted.
The route takes runners through some of Ireland’s most stunning landscapes, with breathtaking views of the Wicklow Mountains, winding country roads and open countryside.
Plus, enthusiastic locals will no doubt equal a fantastic post-race atmosphere in the town.
If you're looking to push your limits with jaw-dropping scenery for moral support, this one's for you.
8. Dingle Half Marathon
When?: Saturday 6th September 2025 - sold out, but one to watch for 2026.
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The Dingle Half Marathon is considered to be the most scenic race in Ireland.
Held annually on the Dingle Peninsula in County Kerry, it takes runners from Dingle Town and on to Slea Head Drive. This offers panoramic views of the Blasket Islands and rugged Atlantic coastline.
National Geographic has described this landscape as "probably the most beautiful on Earth."
The course is free from traffic on race day, allowing runners to fully immerse themselves in the natural beauty of the area. A real standout event on Ireland's running calendar.
8. Connemarathon
When?: Sunday 27th April 2025.
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The Connemarathon Half Marathon offers runners a chance to experience the rugged beauty of Connemara, County Galway, Ireland.
Starting in the village of Leenane and finishing at Maam Cross, the course features two challenging hills and landscapes dotted with lakes and mountains.
Participants can expect a vibrant atmosphere at the start and along the route, with local support enhancing the experience.
Connemara's unspoiled terrain and rich cultural heritage make this event both a physical challenge and a scenic adventure.
9. Bord na Mona Tullamore Half Marathon
When?: Saturday 30th August 2025.
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Serving as the host for the National Half Marathon Championships, Bord na Móna Tullamore Half Marathon is a distinguished event in County Offaly and attracts participants from all over Ireland and beyond.
Beginning at the Tullamore Harriers Stadium, the race ushers runners through scenic Mucklagh, Killurin and Cloonagh. It ends with celebratory laps on the stadium tracks - great for some finish-line glory.
The course is mostly flat with gentle undulations - ideal for seasoned athletes and those training for other events.
Known for its exceptional organisation and community-driven atmosphere, this is one friendly run you may want to mark on your calendar.
10. Clonakilty Half Marathon
When?: December 2025.
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The Clonakilty Half Marathon, part of the Clonakilty Waterfront Marathon series, is an annual event in the coastal town of Clonakilty, West Cork.
Renowned for its scenic route, the race offers participants picturesque views of the Atlantic coastline and the lush Irish countryside.
The event is celebrated for its warm and welcoming atmosphere, often described by participants as having a unique charm that keeps them returning each year.
Clonakilty itself is a town known for its rich history, colourful shopfronts and great food. Perfect for a day or two of post-race sightseeing.
Ready to Run? Stay Connected with eSIMs from Airalo
If you're travelling to Ireland for a half marathon, you’ll need to access your maps, keep your fitness tracker ticking over and collect your chip without any worries.
With an eSIM for Ireland from Airalo, you can stay connected from the moment you land.
Select and install your eSIM for Ireland before you head off and all you'll have to worry about is your PB. Break a leg!
