The 2017 Southeast Asian Games, officially known as the 29th Southeast Asian Games, or the 29th SEA Games, and commonly known as Kuala Lumpur 2017, was a Southeast Asian multi-sport event that took place from 19 to 30 August 2017 in Kuala Lumpur, Malaysia. This was the sixth time that Malaysia hosted the games and its first time since 2001. Previously, it had also hosted the 1965, 1971, 1977 and 1989 editions of the games. The 2017 edition is most notable for being the first edition to include winter sports.

SEA Games, officially known as the South East Asian Games, is a biennial multi-sport event involving participants from the current 11 countries of Southeast Asia. The games are under the regulation of the Southeast Asian Games Federation with supervision by the International Olympic Committee (IOC) and the Olympic Council of Asia (OCA). The SEA Games is one of the five subregional Games of the Olympic Council of Asia (OCA).