John 'Black Jack' Anderson (d 1842?) was an African-American sealer and pirate active in the Recherche Archipelago off the south coast of Western Australia.

Blackjack Perfect Pairs is a side bet that the first two cards the player is dealt make a pair, with three different types of pair paying out at different odds. A pair is considered to be two cards of the same numerical value for cards between two and 10 and the same face value for jacks, queens, kings and aces.