Coordinates: 55°41′24″N 4°36′07″W / 55.690°N 4.602°W / 55.690; -4.602

The hamlet of Auchentiber (Scottish Gaelic, Achadh an Tiobair) is in North Ayrshire, Parish of Kilwinning, Scotland. Auchentiber is 4 miles (6.4 km) NE of Kilwinning on the Lochlibo Road, 2.2 miles (3.5 km) from the hamlet of Burnhouse and 2.6 miles (4.2 km) from the village of Barrmill. Grid Ref. NS3647. Some new housing has been built, but the settlement is still very much a hamlet. The settlement is on the Lugton Water, which runs into the River Garnock after running through Montgreenan and Eglinton Country Park in Irvine.

Auchentiber lies on the old toll roads from Ayr (15 miles) to Glasgow (17 miles), and Irvine to Glasgow with a junction for Kilwinning and a nearby country road leading to Bloak, Aiket castle, Bonshaw, the Kilbrides and ultimately to Stewarton. The main part of the village is now on a 'cul de sac', however previously lanes, footpaths and fords gave through routes to Fergushill Hall, the Stewarton road and back up to the Glasgow or 'Lochlibo Road' via Bentfauld farm. A lane branches off at Bloak Road Bridge which runs via several farms, past Clonbeith and thence to Irvine via Sevenacres.