Gavan Duffy (surname)

Gavan Duffy is a compound surname. A list of people with the name include:


 * C. Gavan Duffy (1874–1958), Canadian politician and judge
 * Charles Gavan Duffy (1816–1903), Irish and Australian editor, politician, and jurist
 * Charles Cashel Gavan Duffy (1855–1932), Australian public servant
 * Charles Leonard Gavan Duffy (1882–1961), Australian judge
 * Frank Gavan Duffy (1852–1936), Australian jurist
 * George Gavan Duffy (1882–1951), Irish politician and jurist
 * Louise Gavan Duffy (1884–1969), Irish nationalist and Irish language enthusiast who founded an Irish language school