Kozo as a Baby Name. Meaning and Origin of Kozo

What is the meaning of the name Kozo ?

The baby name Kozo is a Male name , 2 syllables long and is pronounced /koːzoː/ (KOH-zoh).

Kozo is Japanese in Origin.

Kozo is a Japanese masculine given name, commonly pronounced Kōzō. Its meaning depends on the kanji: Ko may be written as 浩 “expansive,” 孝 “filial piety,” 康 “healthy,” 幸 “good fortune,” 弘 “broad,” 光 “light,” or 耕 “to till,” while Zō is often 三, a nanori reading of “three” implying a third son, or 蔵 “storehouse/treasure.” Typical spellings include 浩三 (“expansive, third”), 孝三 (“filial, third”), 康三 (“healthy, third”), and 幸蔵 (“fortunate storehouse”).

The name belongs to a vintage class of masculine -zō names (e.g., Shōzō, Ryūzō) popular from the Meiji through early Shōwa eras and now less common among newborns, lending it a classic, traditional feel. Romanization varies: Kozo (simplified), Kōzō (with macrons), Kouzo/Kouzou (kana-lengthening style), and occasionally Kohzo. Notable bearers include singer-songwriter Kōzō Murashita and football administrator Kōzō Tashima, helping keep the name familiar in modern Japan.