Longford is a village immediately west of Heathrow Airport in the London Borough of Hillingdon. Longford is 15.8 miles (25.4 km) west of Charing Cross.

The village is located on the Bath Road, to south of the M4 motorway and just north of the Heathrow Western Perimeter Road. The area is characterised by a historic village core. Despite its close proximity to the Bath Road, the Stanwell Moor Road and Heathrow Airport, Longford has retained its village character.

The village developed on the site of the (long) ford on the River Colne, which was an important crossing point for travellers on the Old Bath Road. The name Longford derives from the 2 words ‘long’ and ‘ford’ extending from the first bridge at Harmondsworth almost to Colnbrook.

Limited evidence survives of Roman occupation though archaeological excavations have revealed 2 brooches of Roman date. It is believed that Longford developed as a small Saxon settlement dating from the 5th to 7th century AD. Historic buildings still survive from the medieval and post medieval period.