Desmond Fitzgerald or FitzGerald may refer to:
Desmond FitzGerald, 28th Knight of Glin (1901–1949), Anglo-Irish nobleman Desmond John Villiers FitzGerald, Knight of Glin (1937–2011), Irish author Desmond FitzGerald (politician) (1888–1947), Irish revolutionary and politician Desmond Fitzgerald (CIA officer) (1910–1967), American espionage officer Desmond FitzGerald (architect) (1911–1987), Irish architect Desmond Fitzgerald (professor) (born 1953), president of the University of Limerick Desmond G. Fitzgerald (1834–1905), English electrician and spiritualist