The Trafalgar Monument is an ornamental tower (or folly) in Carrignamuck townland, 2.8 km (1.7 mi) north of Coachford village, County Cork, Ireland.

It was built by Nicholas Colthurst, who served during the Napoleonic Wars, and was a midshipman aboard HMS Prince during the Battle of Trafalgar.

The Irish Tourist Association survey of 1944 describes it as a plain, ivy-covered, rectangular structure, which once appeared to have a stone roof.

[4] The Archaeological Inventory of County Cork describes it as a mid/late nineteenth century roofless square tower, one storey in height, with a high parapet wall, located on a man-made mound, and overlooking both the Dripsey River and Clonmoyle House.

[5] The National Inventory of Architectural Heritage describes it as a ruinous square-plan folly tower, built c.1820, with rubble stone walls and an ogee-headed opening to each elevation.