A sandy-blonde pooch was found wandering behind the Fontainebleau hotel on Miami Beach Wednesday.
Security staff discovered the dog in the hotel's dog-friendly green space, called the FB Pet Park, but could not locate its owner.
The small dog is believed to be a terrier mix and appeared to be groomed and in good health.
Anyone with information about a possible owner is asked to call the hotel at 305-538-2000.
A resident at the Fontainebleau is looking after the dog until its owner comes forward.