|Birth:||15 February 1900|
|Death:||11 September 2011|
|Age:||111 years, 208 days|
Tanekichi Onishi (15 February 1900 – 11 September 2011) was a Japanese supercentenarian who was the second oldest living man in the world and also in Japan at the time of his death, behind Jiroemon Kimura .
Tanekichi Onishi was born in Gifu Prefecture, Japan, on 15 February 1900. He died in Hokkaido Prefecture, Japan, on 11 September 2011, at age of 111 years 208 days. Coincidentally another Japanese supercentenarian, Kana Nakada, who was born on the same day as him also died on the same day as him.