Mr. Green may refer to:

• Mr. Green (Clue), is the character in the game of Cluedo/Clue
• Mr. Green Jeans, Hugh Brannum's role on the children's television show Captain Kangaroo
• Mr. Green (record producer), an American Disc jockey and hip hop record producer
• Mr Green (company), an online gambling company
• Mr. Green Tea Ice Cream Company, a food production company based in Brooklyn, New York City
• SoBe Mr. Green, a former brand of carbonated soda drink

• Green (surname)