Daniel Negreanu was born to Annie and Constantin in Toronto, Ontario. Daniel's parents moved to Canada after leaving Romania in hopes of giving their children better lives.
At the age of sixteen, Daniel discovered an affinity for gambling, pool hustling, and poker. These games, combined with his love for numbers and probability, quenched Daniel's competitive thirst. After leaving high school one art credit short, Daniel was playing poker full time and with adults twice his age in various charity casinos and other gambling halls. Not only was Daniel playing in these games, but he was also winning on a consistent basis. As time pressed on Daniel's bankroll grew.