NJPW New Japan Cup 2005 - Day 1 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on April 19, 2005, at Hiroshima Sun Plaza in Hiroshima, Japan.

NJPW New Japan Cup 2005 - Day 2 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on April 21, 2005, at Korakuen Hall in Tokyo, Japan.

NJPW New Japan Cup 2005 - Day 3 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on April 23, 2005, at Yokkaichi City Gymnasium in Yokkaichi, Mie, Japan.

NJPW New Japan Cup 2005 - Day 4 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on April 24, 2005, at Osaka Prefectural Gymnasium in Osaka, Japan.