The Yamazaki Shell Midden (山崎貝塚, Yamazaki kaizuka) is an archaeological site in the Yamazaki-Kaizuka neighborhood of the city of Noda, Chiba Prefecture, in the Kantō region of Japan containing a Jōmon period shell midden and settlement ruin. The site was designated a National Historic Site of Japan in 1976, with the area under designation expanded in 1995.