Lisnascreghog School, Lisnascreghog Road, Garvagh, Co. Londonderry, BT51 5DL

Lisnascreghog School was a one-storey schoolhouse built in 1826 on Lisnascreghog Road near Garvagh. The building was constructed by the Worshipful Company of Ironmongers and the Kildare Street Society, with local parishioners contributing labouring work. The east gable carried a stone inscribed 'GVS 1826', the initials of Reverend George Vaughan Sampson, who was instrumental in establishing the school.

The building was a three-bay rectangular structure measuring 33 feet by 18 feet 3 inches, with roughcast walls whitened and rendered with plain raised stone surrounds to multi-paned windows. It featured a semi-circular headed window in the west gable and a small gabled porch projecting from the east gable. The roof was slated with one chimney on the west gable and stone dressings to the extremities.

The schoolhouse stood within the centre of a rath (ancient earthwork), which served as the school playground. By the 1830s the fort was known as 'Lisnacreagh'. The rath was described as standing on an eminence and enclosed by a moat and three parapets, with the outer parapet faced with stone and thorn quickthorn, and the moat and middle parapet planted with various kinds of forest trees.

The school served a predominantly Catholic population, with 121 of its 122 pupils being Catholic. The master was Patrick McNichol, and local Catholic clergy visited to teach catechism on Saturdays. Pupils of all ages attended; 21 were over 15 years old, though only 40 of the total were female. The school received income from the Education Board (£12), the Worshipful Company of Ironmongers (£6), and pupil contributions (£1). A plan from the 1930s revaluation shows the schoolhouse consisting of a single room with a porch and two external privies.

The building was converted to use as a dwelling house and was listed in 1977. Demolition permission was granted in 1979, and the schoolhouse was demolished in the late 1970s and replaced with a modern two-storey dwelling. It is no longer listed as of 2015.