Setagaya (世田谷区 Setagaya-ku) is a special ward in Tokyo, Japan. It is also the name of a neighborhood within the ward. The ward calls itself Setagaya City in English. Its official bird is the Azure-winged Magpie, its flower the Fringed Orchid, and its tree the Zelkova serrata. It has the largest population and second largest area (after Ōta) of Tokyo's 23 special wards.