Dartrey Forest, near Rockcorry in north-west County Monaghan, Ireland, was formerly part of the Dartrey Estate, located in the Barony of Dartrey. It was also named "Dawson Grove", the country estate of the Dawson family, who had the title "Earl of Dartrey" from 1866 to 1933. The once vast estate was centred on Dartrey Castle (demolished in 1946). The forest's main gate is only a few miles from Cootehill. It is currently managed by Coillte as a commercial forest.