Julia Margaret Duffy (née Hinds; born June 27, 1951 in St. Paul, Minnesota) is an American actress. She was born near Minneapolis, Minnesota.
She has acted in a number of television situation comedies. She played Penny Davis in the 1970s television soap opera The Doctors. She played Stephanie in the 1980s sitcom Newhart. She played Allison Sugarbaker in season 6 of Designing Women.