The `Battleship` actress revealed her parents loved the moniker of her mother`s best friend`s horse Brooke and decided on the more "formal" version of it for their daughter.
She told Vanity Fair magazine: "I`m namedafter a horse. My mom`s best friend had a horsenamed Brooke, so my dad suggested `Brooklyn` as a more formal version, and it just stuck - and now I live in Brooklyn part-time, so go figure."
The former model married tennis star Andy Roddick in 2009 and while both are busy forging successful careers, Brooklyn can`t wait to have kids.
She said: "I think that I`d like to try to be a superwoman and have kids and work, so we`ll see if I can actually accomplish that. But, if we`re talking dream scenario, that would probably be it."
Brooklyn, 25, quit modelling at the height of her career in 2010 to focus on acting and although it was a success, she admitted her agent wasn`t too happy with her at first.
She said: "The Sports Illustrated cover was the last thing I shot. That week, I told my agent, `You know what, I really ... I don`t want to be a model anymore. I really want to do movies.` And I think he wanted to wring my neck at the moment."