Shigeki (written: 茂樹, 茂喜, 茂輝, 繁樹, 重喜 or 成樹) is a masculine Japanese given name. Notable people with the name include:
Shigeki Abe (阿部 茂樹) (born 1972), Japanese baseball player
Shigeki Hosokawa (細川 茂樹) (born 1971), Japanese model and actor
Shigeki Kurata (藏田 茂樹) (born 1972), Japanese footballer
Shigeki Maruyama (丸山 茂樹) (born 1969), Japanese golfer
Shigeki Mino (三野 茂樹) (born 1932), Japanese modern pentathlete
Shigeki Mori (森 茂喜), Japanese businessman and politician
Shigeki Morimoto (森本 茂樹), Japanese video game designer
Nishimura Shigeki (西村 茂樹) (1828–1902), Japanese educator and writer
Shigeki Osawa (大澤 茂樹) (born 1986), Japanese mixed martial artist
Shigeki Sato (佐藤 茂樹) (born 1969), Japanese professional wrestler best known by his ring name Dick Togo
Shigeki Sato (politician) (佐藤 茂樹) (born 1969), Japanese politician
Shigeki Toyoshima (born 1971), Japanese high jumper
Shigeki Tsujimoto (辻本 茂輝) (born 1979), Japanese footballer
Shigeki Wakabayashi (若林 重喜) (born 1966), Japanese baseball player
Shigeki Yano (矢野 繁樹), Japanese Paralympic athlete
Fictional characters:
Shigeki Amano (天野 茂樹), character in the manga series Magical Girl Pretty Sammy
Shigeki Satō (佐藤 成樹), character in the anime series Whistle!