NBA Commissioner Adam Silver announced the fine Monday.
Ujiri took the stage at an outdoor gathering at Air Canada Centre to pump up fans prior to Toronto's playoff game against the Brooklyn Nets last Saturday, and ended his speech by pairing an F-bomb with Brooklyn.
The GM was quick to apologize, as team officials summoned media for a halftime gathering in the hall outside the playoff media centre at Air Canada Centre.
Ujiri said he used a "wrong choice of words" in trying to fire up the large crowd.
The Nets went on to win Game 1 of the best-of-seven series 94-87.
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