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.

[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.

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