Derriaghy, (/ˌdɛrɪˈæxi/;[1] also known as Derryaghy), (from Irish Doire Achaidh, meaning 'oak-wood of the field'), is a townland (of 538 acres) and civil parish in County Antrim, Northern Ireland, 5.5 miles (9 km) south-west of Belfast city centre.

[2] The earliest documentary reference to a church in Derriaghy is in a letter from Pope Innocent III in 1204.

The Taxation of Down, Connor and Dromore of 1306-07 also mentions a church in Derriaghy.

The records of an Inquisition in Antrim in 1605 indicate that the parish church of Dirreraghie was in some disrepair.

[4] Derriaghy railway station was opened in 1907 and is between Dunmurry and Lambeg stations on the main Belfast-Dublin railway line.