Supercentenarian Profile

Kiyotaka Mizuno

Born:

1914-03-14

Iwata, Shizuoka Prefecture

Japan

Died:

2026-02-08

Iwata, Shizuoka Prefecture

Japan

✔ Age Certified by LongeviQuest

Kiyotaka Mizuno (Japanese: 水野清隆) was a Japanese supercentenarian who was the country’s oldest living man from August 2024, until his own passing.

BIOGRAPHY

Kiyotaka Mizuno was born in Iwata, Shizuoka Prefecture, Japan, on 14 March 1914, as the eldest son of a farming family. He had one younger sister. He lived through four eras: Taisho, Showa, Heisei, and Reiwa.

In his youth, Mizuno served as a guard for the Emperor and was stationed at the Imperial Palace during the February 26 Incident in 1936, an attempted military coup in Tokyo led by young army officers seeking political reform. Later, during World War II, he was deployed to the continent, where he narrowly escaped death before returning to Iwata.

After the war, Mizuno became a farmer, producing crops such as taro and white onions, and continued his agricultural work until the age of 80.

At the age of 111, Mizuno lived at home with his eldest son, daughter in law, and grandchild, requiring only minimal care. Just before turning 109, he lost his eyesight, but until then, he had maintained a daily habit of reading newspapers and walking indoors to stay active and healthy. Despite his vision loss and diminished hearing, he still enjoyed listening to sumo wrestling and marathon broadcasts through headphones.

His daily routine began at 6:30 a.m., when he woke up and started his day. Even after turning 100, he maintained a consistent and mindful approach to his diet. Every morning, he ate a banana with breakfast, and for dinner, he always included yogurt. He also enjoyed two daily snacks: milk and castella (Japanese sponge cake) at 10:00 a.m., and Yakult (a probiotic drink) with biscuits at 3:00 p.m.

In the past, Mizuno used to enjoy drinking alcohol every night, but he decided to quit at the age of 95 for health reasons. He continued to eat three meals a day, focusing on seasonal ingredients while keeping his portions moderate at about 70% of his capacity.

Despite his advanced age, Mizuno stayed active. He spent his days sitting in a chair while exercising his hands and feet, and when he was in the living room with his family, they adjusted the television to his preferred channels so he could enjoy news programs and live sports broadcasts.

Mizuno passed away from natural causes on 8 February 2026, at the age of 111 years and 331 days.

RECOGNITION

Following the death of Kentaro Muramatsu of Yaizu City on 23 November 2021, Mizuno became the oldest living man in Shizuoka Prefecture.

On 3 July 2024, at the age of 110 years, 111 days, he surpassed the final age of Takejirō Takayama (1909–2020), he became the oldest man to have ever lived in Shizuoka Prefecture.

His age was verified by Japan’s Ministry of Health, Labour, and Welfare (MHLW), as well as Ryohei Asano and Yumi Yamamoto, and validated by LongeviQuest on 11 July 2024.

On 21 August 2024, following the passing of an anonymous 110-year-old man from Tokyo, he became the Oldest Living Man in Japan.

On 9 November 2025, following the passing of 112-year-old Yoshi Moriya of Izu, he became the oldest living person in Shizuoka Prefecture. Upon his own passing, Tama Ōishi succeeded him as the prefecture’s oldest resident, while Toshirō Ozawa of Kikugawa (born 1 October 1916) succeeded him as the prefecture’s oldest living man.