Chiyono Hasegawa (20 November 1896 — 2 December 2011) was a Japanese supercentenarian. Aged 115 years, 12 days at the time of her death, she was the oldest verified person in Japan (since the death of Kama Chinen on 2 May 2010) and the oldest verified person in Asia. She was the second oldest verified living person in the world behind American woman Besse Cooper. At the time of her death, Hasegawa was one of only 26 people verified to have surpassed a 115th birthday, and the second Japanese person after Tane Ikai.