K-50 or K50 may refer to:

Vehicles Automobiles K-50 truck, an American military truck Karry K50, a Chinese compact MPV Qiantu K50, a Chinese battery-electric sports car

Ships , a corvette of the Royal Navy

Other uses K50 Airstrip, in Lower Shabelle, Somalia K-50M, a Vietnamese submachine gun Bastien und Bastienne, by Wolfgang Amadeus Mozart Otanoshike Station, in Hokkaido, Japan Pentax K-50, a digital camera Potassium-50, an isotope of potassium Redmi K50, a smartphone Toyota K50 transmission