最长寿命（英语：maximum life span）是指一个生物群体中寿命最长的个体所达到的寿命长度。
大多数物种细胞的分裂次数有一个上限，影响了生物寿命的长短。对于人类，这一上限被称为海佛烈克极限 。
英语百科
Maximum life span 最长寿命
Maximum life span is a measure of the maximum amount of time one or more members of a population have been observed to survive between birth and death. The term can also denote an estimate of the maximum amount of time that a member of a given species could survive between life and death, provided circumstances that are optimal to that member's longevity.