Patrick Regan

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
Pat Regan (musician), music producer and musician

See also 
Pat Regan (1955–2008), British anti-gun activist