Green hat

Green hat may refer to:

• Green hat, in de Bono's Six Thinking Hats
• Green hat, an ecclesiastical hat for a bishop
• Green hat, a Chinese term for cuckold
• Green Hat, a 2004 film
• Green Hat Films, a film company of Todd Phillips
• The Green Hat (novel), by Michael Arlen, 1924
  • The Green Hat (play)