Gender Masculine Usage Japanese Scripts 光希, 幸輝, etc.(Japanese Kanji) こうき(Japanese Hiragana) Pronounced Pron. /ko̞ː.kʲi/ Meaning & History From Japanese 光 (kō) meaning "light" or 幸 (kō) meaning "happiness, good luck" combined with 希 (ki) meaning "hope" or 輝 (ki) meaning "brightness". This name can be formed from other combinations of kanji characters as well.