Croghan Mountain or Croghan Kinsella at 606 metres (1,988 ft), is the 211th–highest peak in Ireland on the Arderin scale, and the 258th–highest peak on the Vandeleur-Lynam scale. Croghan is situated at the far southeastern end of the Wicklow Mountains on the Wicklow and Wexford border, in Ireland.

In these lists of mountains in Ireland, those within Northern Ireland, or on the Republic of Ireland – United Kingdom border, are marked with an asterisk, while the rest are within the Republic of Ireland. Where mountains are ranked by height, the definition of the topographical prominence used to classify the mountain, is noted. In British definitions, a height of 600 metres (1,969 ft) is required for a mountain, whereas in Ireland, a lower threshold of 500 metres (1,640 ft) is sometimes advocated.