Daniel Gallagher

Daniel Gallagher may refer to:


 * Daniel Gallagher (sheriff) (1896–1956), sheriff of the City and County of San Francisco
 * Daniel J. Gallagher (1873–1953), American attorney and political figure in Massachusetts
 * Daniel M. Gallagher (born 1972), Commissioner of the U.S. Securities and Exchange Commission
 * Dan Gallagher (footballer) (born 1997), English footballer, playing for Dorking Wanderers