Shigeaki (written: 茂章, 茂昭, 成亮, 成彬, 成彰 or 重昭) is a masculine Japanese given name. Notable people with the name include:
Shigeaki Hattori (服部 茂章) (born 1963), Japanese racing driver
Shigeaki Ikeda (池田 成彬) (1867–1950), Japanese politician and businessman
Shigeaki Kato (加藤 成亮) (born 1987), Japanese idol and singer
Shigeaki Mori (森 重昭) (born 1937), Japanese historian
Shigeaki Saegusa (三枝 成彰) (born 1942), Japanese composer
Shigeaki Uchino (内野 重昭) (born 1931), Japanese modern pentathlete
Shigeaki Ushijima (牛島 茂昭) (born 1977), Japanese luger
Shigeaki Yokota (横田 茂昭) (born 1969), Japanese Go player
