Alan, Allan, or Allen Segal, Siegal, or Siegel may refer to:
Abe Segal (Alan Abraham Segal, 1930–2016), South African tennis player Allan Segal (1941–2012), British documentary film maker Alan F. Segal (1945–2011), American scholar of ancient religions Allan M. Siegal (1940–2022), American journalist Alan Siegel (born 1938), American businessman