Yuichiro Miura (三浦 雄一郎, Miura Yūichirō, born (1932-10-12) October 12, 1932 ) is a Japanese alpinist who in 2003, at age 70, became the oldest person to reach the summit of Mount Everest. This record was later broken. Miura had two heart surgeries for cardiac arrhythmia, in 2006 and 2007. On May 23, 2013 Miura again became the oldest person to climb to the summit of Mount Everest at the age of 80. This achievement is listed in the Guinness Book of Records.