a county of Ireland, in the province of Leinster; bounded on the north by the county of Dublin; on the east by the Irish sea; on the south by Wexford; and on the west by Kildare and Catherlough. It is 33 miles in length, 20 in breadth, and indifferently fruitful. It contains 54 parishes, and formerly lent 10 members to the Irish parliament.

the capital of a county of the same name, in Ireland; seated on the sea-fide, with a narrow harbour, at the mouth of the river Leitrim, over which stands a rock, instead of a castle, surrounded by a strong wall, 24 miles south of Dublin. W. Long. 6. 7. N. Lat. 52. 55.