Kazuki Sado (佐渡一毅, born 20 February 1985) is a Japanese dressage rider. He competed at the 2018 World Equestrian Games, at the Asian Games in 2014 and 2018. He won team gold during the Asian Games in 2018 and team silver during the Asian Games in 2014. He trained in the Netherlands with former Olympian Imke Schellekens-Bartels in preparation towards the 2020 Olympic Games. He participated in the 2020 Olympics.