Bernard J. Geis (August 30, 1909 – January 8, 2001) was an American editor and publisher who founded the now-defunct Bernard Geis Associates, which published and promoted several best-sellers in the 1960s and 70s, including Jacqueline Susann's Valley of the Dolls and Helen Gurley Brown's Sex and the Single Girl and David Wilkerson's The Cross and the Switchblade.