The A4012 is a road in the United Kingdom. It starts in the village of Brogborough to the south east of Milton Keynes on the A507 Ridgmont new bypass and heads southwest to the village of Woburn. Here it meets the A5130 and changes direction, heading southeast past Milton Bryan before crossing the A5 at right angles in the village of Hockliffe. After this it continues west on into the town of Leighton Buzzard.