A server chassis includes a housing, a support frame, and a back plate. The housing includes a substrate. A fixing portion is vertically disposed on the substrate and is fixedly connected with the back plate. The support frame is fixedly connected with the substrate. A first protrusion is disposed on the support frame and is inserted into the back plate. The interior of the server chassis is rendered more compact, and the server chassis can accommodate eight hard disks. A server including the server chassis is also disclosed.