Gwen Margolis (née Liedman; October 4, 1934 – June 9, 2020) was a Democratic politician from Florida. She served three different times in the Florida Senate: from 1980 to 1992, 2002 to 2008, and 2010 to 2016. She served as Senate President for the 1990–92 term, becoming the first woman president and the last president to preside over a majority-Democratic chamber. Prior to her time in the Senate, she serve three terms in the Florida House of Representatives, from 1974 to 1980. She was previously married to Allan Margolis. Gwen Margolis died at the age of 85 on June 9, 2020.