KLY or kly may refer to:
- Kly (Mělník District), a village and municipality in Mělník District, Central Bohemian Region, Czech Republic
- ISO 639-3 code of Kalao language from Indonesia
- Kalaw Lagaw Ya, an indigenous Australian language
- Kenley railway station, London
Kly (Mělník District)
''' Kly (Mělník District) ''' is a village and municipality in Mělník District in the Central Bohemian Region of the Czech Republic.