K20 may refer to:
*
K-20 (Kansas highway)
K-20 is a west–east state highway in the northeastern part of the U.S. state of Kansas. It connects U.S. Route 75 (US-75) in the Kickapoo Nation Indian Reservation with K-7 southwest of Troy. Along the way, K-20 intersects several major ...
* ''
K-20: Legend of the Mask'', a 2008 Japanese film
*
K20 Center, an American research institute
*
Fairchild K-20
The K-20 is an aerial photography camera used during World War II, famously from the Enola Gay's tail gunner position to photograph the nuclear mushroom cloud over Hiroshima. Designed by Fairchild Camera and Instrument, approximately 15,000 were ...
, an aerial camera used during World War II
* , an M-class submarine of the Royal Navy
*
Kaman K-20, an American helicopter
*
Redmi K20, a Chinese smartphone
* K20, a model of
Honda K engine
The Honda K-series engine is a line of four-cylinder four-stroke car engine introduced in 2001. The K-series engines are equipped with DOHC valvetrains and use roller rockers on the cylinder head to reduce friction. The engines use a coil-on-plug ...
{{Letter-Number Combination Disambiguation