Élisabeth Decrey Warner née Reusse-Decrey (born 1953) is a Swiss peace activist and politician. In 1998 she founded the humanitarian organization Geneva Call which set out to involve armed non-State actors in banning the use of landmines. She served as the organization's executive president until late 2017. Decrey Warner has been widely recognized for her peace efforts. She was nominated for Switzerland as one of the 1,000 women for the Nobel Peace Prize in 2005, in 2012 she was awarded the Hessian Peace Prize, and in 2013 she received the French Legion of Honour.
