Llangothlin is a rural locality with several houses, 11 kilometres (7 mi) north of Guyra on the Northern Tablelands in the New England region of New South Wales, Australia.

[3] The original alignment of the New England Highway crossed the Main North railway line at Llangothlin at a level crossing, until the highway was realigned to be entirely on the eastern side of the railway.

Llangothlin Post Office opened on 15 November 1886 and it still services the local community today.

Little Llangothlin Nature Reserve and the adjacent area, Bagot Rd, have been placed on the Register of the National Estate.

These are two small lakes which are an important breeding and feeding area for migratory waterfowl, and also for frogs.