KML or kml may refer to:

• Kamileroi Airport (IATA airport code), Queensland, Australia
• Keyhole Markup Language, an XML geospatial data file format
• Korean Mountaineering League, an organization that focuses on the conservation of Korea's mountain environments
• Lower Tanudan Kalinga (ISO 639-3 language code), a language used in Tanudan, Kalinga, Philippines
• Korvpalli Meistriliiga, the Estonian Basketball League
• KiSS Markup Language, an html-like file format used by certain KiSS and Linksys products

Keyhole Markup Language (KML) is an XML notation for expressing geographic annotation and visualization within Internet-based, two-dimensional maps and three-dimensional Earth browsers. KML was developed for use with Google Earth, which was originally named Keyhole Earth Viewer. It was created by Keyhole, Inc, which was acquired by Google in 2004. KML became an international standard of the Open Geospatial Consortium in 2008. Google Earth was the first program able to view and graphically edit KML files. Other projects such as Marble have also started to develop KML support.

KML or kml may refer to:

• Kamileroi Airport (IATA airport code), Queensland, Australia
• Keyhole Markup Language, an XML geospatial data file format
• Korean Mountaineering League, an organization that focuses on the conservation of Korea's mountain environments
• Lower Tanudan Kalinga (ISO 639-3 language code), a language used in Tanudan, Kalinga, Philippines
• Korvpalli Meistriliiga, the Estonian Basketball League
• KiSS Markup Language, an html-like file format used by certain KiSS and Linksys products

Keyhole Markup Language (KML) is an XML notation for expressing geographic annotation and visualization within Internet-based, two-dimensional maps and three-dimensional Earth browsers. KML was developed for use with Google Earth, which was originally named Keyhole Earth Viewer. It was created by Keyhole, Inc, which was acquired by Google in 2004. KML became an international standard of the Open Geospatial Consortium in 2008. Google Earth was the first program able to view and graphically edit KML files. Other projects such as Marble have also started to develop KML support.