P13, P-13 or P.13 may refer to: In media * NRK P13, a radio station of NRK (Norwegian Broadcasting Corporation)In military * Pattern 1913 Enfield, a rifle used by the British Army during World War I * Lippisch P.13, an experimental aircraft developed by Nazi Germany during World War II * Lippisch P.13a, an experimental aircraft developed by Nazi Germany during World War II * Lippisch P.13b, an experimental aircraft developed by Nazi Germany during World War IIIn transportation * London Buses route P13, a public transportation route