Slieve True (Sliabh an Triúir)
Highest point
Elevation	312 m (1,024 ft)[1]
Prominence	189 m (620 ft)[1]
Listing	Marilyn
Coordinates	54°43′55″N 5°54′35″W / 54.731825°N 5.909761°W / 54.731825; -5.909761
Naming
English translation	Hill of the three
Language of name	Irish
Geography
Location	County Antrim, Northern Ireland
OSI/OSNI grid	J347891
Topo map	OSNI Discoverer 29

Slieve True or Slievetrue (from Irish Sliabh an Triúir 'hill of the three')^[1] is a 312 m-high (1,024 ft) hill in County Antrim, Northern Ireland. It is near Knockagh Monument and Monkstown, about 6 km (3.7 mi) north of Belfast.

Slieve True derives its name from three standing stones (known as "The Three Brothers") about one-half mile (0.80 km) southwest of the summit.^[1] These have since been integrated into a field wall. There is also a cairn in the area.^[2]

In May 2013, Irish electricity company Gaelectric opened a wind farm in the Carn Hill area of Slievetrue, consisting of six wind turbines at a total cost of £20 million.