Rehor or Řehoř is a Czech given name equivalent to "Gregory", as well as a surname.
As a given name it has a number of diminutive forms and surnames derived from it: Řehořek (:cs:Řehořek, feminine: Řehořková), Řehák, Řehá/Reha.
Notable people with the surname include: Fred Rehor (1893–1959), American football player Grete Rehor (1910–1987), Austrian politician Milan Řehoř, Czechoslovak slalom canoeist Milan Řehoř (ice hockey) (born 1984), Czech ice hockey goaltender