Dovhan (), Dovgan, Dolgan, Douhan (), Dołhan or Dowhan, is a surname. Notable people with the surname include:
Alena Douhan, Belarusian United Nations special rapporteur Iryna Dovhan (born 1962), Ukrainian hostage survivor (born 1964), Polish badminton player Mihai Dolgan (1942–2008), Moldovan musician Mihail Dolgan (1939–2013), Moldovan writer Mykola Dovhan (born 1955), Ukrainian rower Robert Dowhan (born 1967), Polish politician Stefania Dovhan, Ukrainian-American soprano Viktor Dovgan (born 1987), Russian ice hockey player
See also L-vocalization, Kovtun