Hart, a former Villanova Wildcat, was staying at the Dominick Hotel in SoHo in September when the theft occurred, police told WABC-TV.
Hart told police someone stole one of his bags containing three watches and jewelry.
No arrests have been made, and the investigation is ongoing.
Hart joined the Knicks in 2023. In 2016, he helped Villanova win an NCAA title alongside current Knicks teammates Jalen Brunson and Mikal Bridges.