Mullaghmore County Sligo
- Location: Castlebar, Mayo
- Country: Ireland
Mullaghmore (Irish: An Mullach Mor, meaning “The Great Summit”) is a village in County Sligo, Ireland.
It is a noted holiday destination, characterised by a skyline dominated by the monolithic shape of the mountain Ben Bulben. It was a favoured holiday retreat of Louis Mountbatten, and it was here that he, along with the Dowager Baroness Brabourne died in 1979.