Lisnadarragh Wedge Tomb is a prehistoric site, a wedge tomb about 16 kilometres (10 mi) west of Carrickmacross, in County Monaghan near the border with County Cavan, in Ireland.

They are a type of gallery grave, and date from the transition between the Neolithic Age and the Bronze Age.

[1][2] The tomb at Lisnadarragh is aligned roughly north-east to south-west, and measures about 4.5 by 2 metres (14.8 by 6.6 ft).

The sides of the tomb are defined by 20 orthostats, which decrease in size from south-west to north-east, the largest, at the entrance, being of height 1.8 metres (5 ft 11 in).

It is roofless; a roof slab lies near the gallery.