Lynn B. Dean (born December 22, 1923) is a boat manufacturer from St. Bernard Parish, Louisiana, who served from 1996 to 2004 as a Republican member of the Louisiana State Senate from District 1 (Jefferson, Plaquemines, and St. Bernard parishes). The district embraces a portion of the New Orleans suburbs, including the lower southeastern coastal parishes of Plaquemines and St. Bernard, once the domain of the legendary political boss Leander H. Perez.