9L

9L or 9-L can refer to:


 * NY-9L, abbreviation for New York State Route 9L
 * AIM-9L, a model of AIM-9 Sidewinder
 * AirTanker Services (IATA code 9L, formerly used by Colgan Air)
 * 9L 3407, code for Colgan Air Flight 3407
 * Kappa 9L, a model of Kappa (rocket)
 * GCR Class 9L, a class of British 4-4-2T steam locomotive