Langley may refer to:

• Langley Castle, in Northumberland, England, and its associated medieval Prescriptive Barony, originally held by the Tyndall family.
• Samuel Pierpont Langley, a scientist and early experimenter in manned flight.
• a measuring unit named after Samuel Pierpoint Langley.
• The Langley Schools Music Project - a recording.
• Langley Grammar School in Berkshire, England.
• Langley Mill Pottery in Langley Mill, Derbyshire, England
• Asuka Langley from Neon Genesis Evangelion.
• A surname, often a habitational name from any of the numerous places named with Old English lang ‘long’ + lēah ‘wood’, ‘glade’; or a topographic name with the same meaning

It is the name of several places:

Canada

• Township of Langley, a district municipality in the Lower Mainland of British Columbia
• Langley City, an urban municipality next to the Township of Langley (separately incorporated)
• Langley is a Canadian federal electoral district in British Columbia, which encompasses the above city and district municipality of Langley, British Columbia, as well as numerous Indian reserves named Langley No. 1, Langley No. 2, Langley No. 3 and so on.
• Langley is a provincial electoral district centred on Langley, British Columbia.

France

• Langley, Vosges, a commune in the Vosges département

United Kingdom

• Langley, Cheshire
• Langley, Essex
• Langley, Hampshire
• Abbots Langley, Hertfordshire
• Kings Langley, Hertfordshire
• Langley, Kent
• Langley, Northumberland
• Langley, Slough in Berkshire. Also known as Langley Marish and formerly in Buckinghamshire.
• Langley, Warwickshire
• Langley, West Sussex

• There are also Langley Common, Langley Mill, Derbyshire; Langley Heath, Kent; Langley Lower Green and Langley Upper Green, Essex; Langley Park, Durham; Langley Street, Norfolk; Langley Burrell, Wiltshire.

United States of America

• Langley, Oklahoma
• Langley, South Carolina
• Langley, Virginia, most famous as home to the headquarters of the Central Intelligence Agency
• Langley, Washington

Two United States Navy ships have borne the name Langley, after the American scientific pioneer Samuel Langley.

• The first Langley (CV-1) was the first aircraft carrier of the Navy, converted from the collier Jupiter in 1922, and sunk in February 1942 by the Japanese.
• The second Langley (CVL-27) was a light aircraft carrier commissioned in 1943, active in World War II, and transferred to France in 1951.

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