Elizabeth "Liz" May (born 27 July 1983 in Luxembourg) is a female athlete from Luxembourg, who competed in triathlon from 2000 to 2013. May is a 2011 Aquathlon World Champion and is a 2009 European Championship silver medalist. May competed at the Olympic triathlon at the 2004 Summer Olympics and 2008 Summer Olympics. She finished in seventeenth place in Athens with a total time of 2:08:29.22.
May is of Danish descent. She was educated at the European School (ESL) in Luxembourg City and has a Master of Laws from the University of Copenhagen.