Jan Jacob Kieft (25 Ndira 1877, Amsterdam <unk> 2 Kubvumbi 1946, Rotterdam), aive mutambi wechiDutch uyo akakwikwidza mu1908 Summer Olympics. Kieft akanga ari mutezo wechikwata cheDutch chemajimnastics, icho chakaguma chiri chechinomwe mumutambo wechikwata
. Mumakwikwi evanhu vose akapedza ari wechi74.