KG, Kg or kg may indicate:

• A Kampfgeschwader, a bomber squadron of the former German Luftwaffe
• Basketball Player Kevin Garnett
• An abbreviation for kilogram (always kg)
• Knight of the Garter, a British decoration
• Kongo language (ISO 639 alpha-2)
• An abbreviation for "konig" or king
• Kwansei Gakuin University (Japan) [1]
• Kyrgyzstan (ISO 3166-1 alpha-2 country code)
• Tenacious D band member Kyle Gass
• KG creator-editor-admin of the KG Bee online news resource