Edie Windsor (née Schlain; June 20, 1929 – September 12, 2017) was an American LGBT rights activist and a technology manager at IBM. She was the lead plaintiff in the 2013 Supreme Court of the United States case United States v. Windsor, which overturned Section 3 of the Defense of Marriage Act and was considered a landmark legal victory for the same-sex marriage movement in the United States. The Obama administration and federal agencies extended rights, privileges and benefits to married same-sex couples because of the decision.