KNL
KNL is an abbreviation for:
- Niederlahnstein train station , one of three train stations in the Rhineland-Palatinate town of Lahnstein
- Kazakh National League , Kazakh basketball league
- Kelanoa Airport , airfield in Kelanoa, Papua New Guinea, according to the IATA code
- Kokoomuksen Nuorten Liitto , youth organization of the Finnish National Collection Party
- Koło Naukowe Lotników , academic aviation group at the Politechnika in Warsaw
- Korea National League , South Korean football league
- Controlled natural ventilation