一生, meaning "life", may refer to:
Issei, Japanese masculine given name Kazuki, Japanese masculine given name Kazuki Sakai (阪井 一生, born 1985), Japanese guitar in the band Flumpool Kazuo, Japanese masculine given name Kazuo Mori (森 一生, 1911 – 1989), Japanese film director
See also
Life (disambiguation) 一生一世 (disambiguation)