Coordinates: 54°57′50″N 6°13′30″W / 54.964°N 6.225°W Martinstown is a small village in County Antrim, Northern Ireland. Located 8 miles from Ballymena, it is situated in Glenravel, locally known as "The Tenth Glen", alongside the widely known nine Glens of Antrim.
It lies within Borough of Ballymena. It had a population of 345 people (108 households) in the 2011 Census. (2001 Census: 285 people)
The village has many amenities, including a supermarket, primary school, post-office, off-licence and pub (The Glensway).