Larkin won a ninth Leinster medal in 2015 following a 1-25 to 2-15 defeat of Galway in the decider. It was Kilkenny's 70th provincial title. Kilkenny renewed their rivalry with Galway once again in the All-Ireland decider on 6 September 2015. The team struggled in the first half, however, a T. J. Reid goal and a dominant second half display, which limited Galway to just 1-4, saw Kilkenny power to a 1-22 to 1-18 victory. It was Larkin's eighth All-Ireland medal in ten years.