List of national monuments in County Monaghan

The Irish state has officially approved the following list of national monuments in County Monaghan. In the Republic of Ireland, a structure or site may be deemed to be a "national monument", and therefore worthy of state protection, if it is of national importance. If the land adjoining the monument is essential to protect it, this land may also be protected.

NM#	Monument name	Description	Image	Townland	Location
111	Clones Round Tower	Round Tower		Crossmoyle	54°10′41″N 7°13′52″W / 54.178041°N 7.231036°W / 54.178041; -7.231036 (Clones Round Tower)
112	Clones High Cross	High Cross		Crossmoyle	54°10′46″N 7°13′57″W / 54.179470°N 7.232628°W / 54.179470; -7.232628 (Clones High Cross)
111	Clones Church	Church		Crossmoyle	54°10′41″N 7°13′52″W / 54.178041°N 7.231036°W / 54.178041; -7.231036 (Clones Church)
382	Mannan Castle	Castle (Motte & Bailey)		Donaghmoyne	54°00′33″N 6°41′57″W / 54.009249°N 6.699125°W / 54.009249; -6.699125 (Mannan Castle)
208	Inishkeen Glebe Round Tower	Round Tower		Inishkeen Glebe	54°00′13″N 6°34′44″W / 54.00368°N 6.578758°W / 54.00368; -6.578758 (Inishkeen Glebe Round Tower)
564	Mullyash Kerbed Cairn	Kerbed cairn		Mullyash, Tavanaskea	54°10′27″N 6°40′10″W / 54.174201°N 6.669410°W / 54.174201; -6.669410 (Mullyash Kerbed Cairn)
367	Cairnbaine	Court Tomb		Tiredigan	54°11′50″N 7°04′29″W / 54.197304°N 7.074721°W / 54.197304; -7.074721 (Cairnbaine)

• National Monuments in County Monaghan