Ikuo (written: 郁夫, 育夫, 征夫 or 幾雄) is a masculine Japanese given name. Notable people with the name include:
Ikuo Hayashi (林 郁夫) (born 1947), member of Aum Shinrikyo
Ikuo Hirayama (平山 郁夫) (1930–2009), Japanese painter
Ikuo Kabashima (蒲島 郁夫) (born 1947), Japanese politician
Ikuo Kamei (亀井 郁夫) (born 1933), Japanese politician
Ikuo Matsumoto (松本 育夫) (born 1941), Japanese footballer and manager
Ikuo Nakamura (中村 征夫) (born 1945), Japanese photographer
Ikuo Nishikawa (西川 幾雄) (born 1940), Japanese voice actor
Ikuo Sekimoto (関本 郁夫) (born 1942), Japanese film director and screenwriter
Ikuo Shirahama (born 1958), Japanese golfer
Ikuo Takahara (高原 郁夫) (born 1957), Japanese footballer
Ikuo Towhata (東畑 郁生), Japanese academic
