Memento Mori (Latin for "Remember that you have to die") is the sixteenth album by Japanese rock band Buck-Tick, released on February 18, 2009. The limited edition came with a DVD of the making of the album. It reached number seven on the Oricon chart with 23,410 copies sold.
Memento Mori continued the concept of a straight "band sound", which Buck-Tick began on Tenshi no Revolver. Satoshi Mishiba of Kinniku Shà Âjo Tai provides piano on "Katte ni Shiyagare" and "Message".