Patrick Regan may refer to:
Patrick M. Regan (born 1956), American professor at Binghamton University Patrick Regan (Medal of Honor, 1918) (1882–1943), United States Army officer and World War I Medal of Honor recipient Patrick Regan (Medal of Honor, 1873) (1852–?), United States Navy sailor and peacetime Medal of Honor recipient
See also Pat Regan (1955–2008), British anti-gun activist