KLM Royal Dutch Airlines, legally Koninklijke Luchtvaart Maatschappij N.V. (literal translation: Royal Aviation Company, Inc.), is the flag carrier airline of the Netherlands. KLM is headquartered in Amstelveen, with its hub at nearby Amsterdam Airport Schiphol.

It is part of the Air France–KLM group and a member of the SkyTeam airline alliance. Founded in 1919, KLM is the oldest airline in the world still operating under its original name and had 35,488 employees and a fleet of 119 (excluding subsidiaries) as of 2015. KLM operates scheduled passenger and cargo services to 145 destinations.

As of October 2015, KLM's corporate leader is its president and chief executive officer (CEO) Pieter Elbers, who replaced Camiel Eurlings suddenly on 15 October 2014. The president and CEO is part of the larger Executive Committee, which manages KLM and consists of the statutory managing directors and executive vice-presidents of KLM's business units that are represented in the Executive Committee. The supervision and management of KLM are structured in accordance with the two-tier model; the Board of Managing Directors is supervised by a separate and independent Supervisory Board. The Supervisory Board also supervises the general performance of KLM. The Board of Managing Directors is formed by the four Managing Directors, including the CEO. Nine Supervisory Directors compose the Supervisory Board.

KLM's head office is located in Amstelveen, on a 6.5-hectare (16-acre) site near Schiphol Airport. The airline's current headquarters was built between 1968 and 1970. Before the opening of the new headquarters, the airline's head office was on the property of Schiphol Airport in Haarlemmermeer.