According to biblical tradition, the oldest person ever to live. Extra-biblical tradition maintains that he died on the 11th of Cheshvan of the year 1656 (Anno Mundi, after Creation), at the age of 969, seven days before the beginning of the Great Flood. Methuselah was the son of Enoch and the grandfather of Noah.
The name Methuselah, or the phrase "old as Methuselah", is commonly used to refer to any living thing reaching great age.
And Enoch lived sixty and five years, and begat Methuselah:
And Enoch walked with God after he begat Methuselah three hundred years, and Enoch begat sons and daughters:
And all the days of Enoch were three hundred sixty and five years: (24) And Enoch walked with God: and he [was] not; for God took him.
And Methuselah lived an hundred eighty and seven years, and begat Lamech:
And Methuselah lived after he begat Lamech seven hundred eighty and two years, and begat sons and daughters:
And all the days of Methuselah were nine hundred sixty and nine years: and he died.