SkyTeam is one of the world's three major airline alliances. Founded in June 2000, SkyTeam was the last of the three alliances to be formed, the first two being Star Alliance and Oneworld, respectively. Its annual passenger count is 437 million customers (2023), the second largest of the three major alliances. As of January 2024, SkyTeam consists of 19 active carriers from five continents and operates with the slogan "Caring more about you". It also operates a cargo alliance named SkyTeam Cargo, which partners ten carriers, all of them SkyTeam members. Its centralised management team, SkyTeam Central, is based in Amstelveen, Netherlands.

An airline alliance is an aviation industry arrangement between two or more airlines agreeing to cooperate on a substantial level. Alliances may provide marketing branding to facilitate travelers making inter-airline codeshare connections within countries. This branding may involve unified aircraft liveries of member aircraft.