Seiyu KK , or Seiyu Group , is a Japanese group of supermarkets, shopping centers and department stores, headquartered in Akabane (赤羽), Kita, Tokyo. On May 8, 2023, the Akabane headquarters office was relocated due to the redevelopment of Seiyu's Akabane store site. The current head office location is Kichijoji Honmachi, Musashino City, Tokyo.

Kita is a special ward in the Tokyo Metropolis in Japan. The English translation of its Japanese self-designation is City of Kita. The ward was founded on March 15, 1947.