KZ1

KZ1 may refer to:


 * KZ1 (karting), a 125 cc kart racing class
 * KZ1 (yacht), New Zealand's 1988 America's Cup challenger
 * Ascari KZ1, a British sports car
 * SAI KZ I, a Danish airplane
 * Kuaizhou 1 (KZ-1) Chinese solid fuel space rocket