Shikō, Shiko or Shikou (commonly written: 志功 or 紫紅) is a masculine Japanese given name. Notable people with the name include:

• Kagami Shikō (各務 支考) (1665-1731), Japanese haiku poet
• Shikō Imamura (今村 紫紅) (1880–1916), Japanese artist
• Shikō Munakata (棟方 志功) (1903–1975), Japanese printmaker and painter