Gender Masculine Usage Japanese Scripts 達夫, 辰夫, 辰雄, etc.(Japanese Kanji) たつお(Japanese Hiragana) Pronounced Pron. /tä.t͡sɨᵝ.o̞/ Meaning & History From Japanese 達 (tatsu) meaning "achieve" combined with 夫 (o) meaning "man, husband". Other combinations of kanji characters can also form this name.