Kenzō or Kenzo or Kenzou (けんぞう, ケンゾウ) is a common masculine Japanese given name.
Kenzō can be written using different kanji characters and can mean:
- 賢三, "wise, three"
- 健三, "healthy, three"
- 謙三, "humble, three"
- 健想, "healthy, concept"
- 建造, "build, create"
- 健蔵, "healthy, storehouse"
- 憲蔵, "constitution, storehouse"
- 研造, "polish, create"
- Emperor Kenzō (顕宗, born 5 AD), twenty-third Japanese imperial ruler
- Adachi Kenzō (謙蔵, 1864–1948), Japanese politician
- Kenzo Fujisue (健三, born 1964), Japanese politician
- Kenzo Nakamura (兼三, born 1973), retired judoka
- William K. Nakamura (1922–1944), United States Army soldier
- Kenzo Okada (1902–1982), American painter of Japanese birth
- Kenzo Oshima (賢三, born 1943), Permanent Representative of Japan to the United Nations
- Kenzo Suzuki (健想, born 1974), Japanese professional wrestler
- Kenzo Suzuki (astronomer) (憲蔵), a Japanese astronomer
- Kenzo Takada (賢三, born 1939), Japanese fashion designer
- Kenzo Tange (健三, 1913–2005), Japanese architect
- Kenzo Yokoyama (謙三, born 1943), retired Japanese football player
- Kenzō Masaoka (1898–1988), 1930s-1940s animation creator
- Kenzo Taniguchi (born 1988), Japanese football player for FC Kagoshima
- Kenzo Ohashi (born 1934), Japanese football player
- Kenzo Mori (1914–2007), Japanese-Canadian journalist and editor
- Kenzo Kitakata (born 1947), Japanese novelist
- Kenzō Kotani (1909–2003), last Yasukuni Shrine swordsmith
- Kenzo (born 1964), a nickname for Italian singer Fabrizio Rizzolo
- Kenzo Harper, a recurring character in the British sitcom My Family
- Kenzo Kobayashi (兼三), an original character in the tactical role-playing video game series Super Robot Wars
- Kenzo Tenma (賢三), the main character in the Monster series