What is "keiji"

is a period manga authored by Tetsuo Hara, which was serialized in the Weekly Shōnen Jump from 1990 to 1993. It is an adaptation of the novel by Keiichiro Ryu and serves as a fictionalized account of the life of Keiji Maeda. Hana no Keiji is one of Weekly Shōnen Jump's best-selling manga series of all time, with over 17 million copies sold.

Keiji is a Japanese given name usually used for males. Meaning varies depending on the kanji characters used.

Keiji can also refer to a police detective, using the kanji 刑事.