Green card may refer to:

• "Green card" nickname (because of what it used to be colored) of the United States Permanent Resident Card, an identification document issued by the United States of America affording non-citizens of that country some of the rights its citizens enjoy, sometimes with the prospect of naturalization.
• Green Card (film), a 1990 movie whose title refers to the American document above.
• "Green card", colloquial name for the IBM System/370 Reference Summary booklet in the 1960s (later editions were colored yellow)
• An international motor insurance certificate, part of the International Motor Insurance Card System, used in and around Europe (Council of Bureaux).
• In field hockey, a green card signals a warning to a player, less severe than a yellow card.
• In Pride Fighting Championships, a penalty for an illegal action which results in a restart and a 10% reduction of the fighter's purse.
• The Greencards, a bluegrass/folk music band.
• Means of summoning a Member of Parliament into the lobby of the British House of Commons.
• Automatic teller machine (ATM) card issued by Canadian Toronto-Dominion Bank, now known as "Access Card".

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