Dabbas (also anglicized as Debbas; ) is an Arabic-language surname from the word () meaning 'maker or seller of (, 'syrup, molasses')'. Notable people with the surname include: Athanasius II Dabbas (1552–1619), Greek Orthodox Patriarch of Antioch (1612–1619) Cyril IV Dabbas (1560–1627), Greek Orthodox Patriarch of Antioch claimant who contended with Ignatius III Atiyah Athanasius III Dabbas (1647–1724), Greek Orthodox Patriarch of Antioch (1685-1696 and 1720–1724) Sylvester I Dabbas, Greek Orthodox Patriarch of Antioch (after 1724 split) (1724–1766) Mohammad Dabbas (1927–2014), Jordanian politician Charles Debbas (1884–1935), Eastern Orthodox Lebanese political figure J. Abdo Debbas, Ottoman Greek who served as American vice-consul at Tarsus Ralph Debbas (born 1987), Lebanese automotive entrepreneur, designer, and businessman
See also Mohammad Bin Dabbas, paralympic athlete from the United Arab Emirates