Coghlan is an anglicisation of the Irish surname Ó Coghláin which means "descendant of Coghlán" or Mac Coghláin which means "son of Coghlán". Notable people with the surname include:
Charles F. Coghlan (actor, born 1896) (1896–1972), American actor and writer Charles Francis Coghlan (1842–1899), Anglo-Irish actor and playwright Charles Coghlan (politician) (1863–1927), South Africa-born lawyer and politician who served as Premier of Southern Rhodesia Chris Coghlan (born 1985), American baseball player Chris Coghlan (politician), British politician
Dylan Coghlan (born 1998), Canadian ice hockey player Eamonn Coghlan (born 1952), Irish track and field athlete Jeremiah Coghlan (c. 1776–1844), Royal Navy officer John Coghlan (disambiguation) Joseph Coghlan (1844–1908), U.S. Navy rear admiral Junior Coghlan (1916–2009), American actor Monica Coghlan (1951–2001), English prostitute involved in a political scandal Paul Coghlan (1944–2023), Irish Fine Gael politician Paul Coghlan (judge), Australian judge Rose Coghlan (1851–1932), English actress