Gansu A madadin romanized kamar Kansu) lardi ne a arewa maso yammacin China. Babban birninta kuma birni mafi girma shine Lanzhou, a kudu maso gabashin lardin.[1]
Gundumar mafi girma ta bakwai mafi girma ta yanki mai fadin murabba'in kilomita 453,700 (square 175,200), Gansu yana tsakanin yankin Tibet da Loess plateaus kuma yana iyaka da lardin Govi-Altai na Mongoliya, Mongoliya ta ciki da Ningxia zuwa arewa, Xinjiang da Qinghai daga yamma, Sichuan zuwa kudu da Shaanxi a gabas. Kogin Yellow ya ratsa ta kudancin lardin. Wani yanki na yankin Gansu yana cikin jejin Gobi. Dutsen Qilian yana kudancin lardin.[2][3]