Arbirlot (Gaelic: Obar Eilid) is a village in a rural parish of the same name in Angus, Scotland. The current name is usually presumed to be a contraction of Aberelliot or Aber-Eliot, both meaning the mouth of the Elliot. It is situated west of Arbroath. The main village settlement is on the Elliot Water, 2+1⁄2 miles (4 km) from Arbroath. There is a Church of Scotland church and a primary school. The school lies 1 mile (1.6 km) further west, in the approximate geographic centre of the parish.

Arbirlot village, sometimes known as Kirkton of Arbirlot, lies in the Kelly Den, formed by the Elliot Water. The principal underlying rock formation is Old Red Sandstone, and Arbirlot attracted the attention of early geologists because of the exposed rock formations in the Kelly Den. Hugh Miller describes the rock formations in the "pastoral village of Arbirlot" in detail in his highly influential 1841 book Old Red Sandstone.

A nature trail by the Elliot Water links Arbirlot with the former railway junction of Elliot on the Angus Coast. Arbirlot hosts a spectacular 23-foot (7 m) waterfall.

There is extensive evidence of prehistoric occupation of the Arbirlot area. The First Statistical Account refers to the recent demolition of a "druidical temple" in the parish, the finding of a "Pictish crown", and the presence of numerous stone cairns. Historic Environment Scotland's Canmore database interprets the reference to the "druidical temple" as possibly referring to a stone circle and based on place-name evidence gives a possible location near to Cairncortie in the north-west of the parish. The Second Statistical Account mentions the finding of many stone arrowheads in the parish. There is a cup and ring marked boulder near Craigend.A short cist burial, of a type normally associated with the early bronze age, was excavated near Greenford Farm in 1957, close to where an ancient fortified enclosure was reported in 1910.

There are cropmark indications of a possible Roman marching camp to the west of Grahamston Cottages.

The date of the foundation of Arbirlot Kirk, dedicated to St Ninian, is unknown, although dates as early as the first decades of the 400s have been proposed. The current manse garden contains a standing stone (illustrated) with what are thought to be medieval carvings, although much earlier dates have also been suggested. The stone was retrieved from the foundations of the parish church during re-building works in 1831.

Monastic records give some support to the tradition of a Culdee religious house or "college" in Arbirlot, that was suppressed sometime after the founding of Arbroath Abbey in the late 12th century. The Culdee title of Abbe of Arbirlot continued to appear in records for some years until about 1207 but apparently as an honorific rather than an actual position of authority over a religious community. The First Statistical Account of 1792 relates the demolition of the ruins of a long revered religious house, and early Ordnance Survey maps show the location of the "college" by the Rottonrow Burn.

Prior to the founding of Arbroath Abbey, the church of Arbirlot belonged to the diocese of St Andrews, and the bishops held lands lying to the east of the Elliot Water. Bishop Roger de Beaumont granted the church to the new Abbey around the time of its foundation, but he retained the lands in Arbirlot for the diocese.