First held in March 2025, the inaugural Dublin City Half Marathon saw nearly 12,000 runners from elite athletes to clubcompetitors, charity runners and first‑time half‑marathoners take on the journey through Dublin City’s streets. The event was widely acclaimed for its organisation, celebration of community participation.

The event returned in partnership with Title Sponsor Dublin City Council on May 3rd, 2026 and under the theme of Run Together, Thrive Together, welcoming 13,000 runners to Dublin City’s streets. Runners of all abilities and backgrounds gathered in the capital for a shared racing experience in the heart of Dublin.

The 21.1 KM course starts in the heart of the city on O’Connell Street, guiding participants through a scenic route across the north side of Dublin before finishing back in the city centre. Runners are boosted by the unmistakable Dublin spirit and energy of residents, family members and supporters in various Dublin communities.

The Dublin City Council Dublin City Half Marathon is organised by Dublin Marathon Group, a not-for-profit organisation that also delivers the Irish Life Dublin Marathon and Irish Life Dublin Marathon Race Series.