Eirini-Marina Alexandri (born 15 September 1997) is an Austrian synchronized swimmer. She competed in the women's duet at the 2016 Summer Olympics, and 2020 Olympics. She is a triplet and teams with her sisters, Anna-Maria and Vasiliki Alexandri.The three sisters grow up in Volos, and moved in Austria in 2015, after an argument with Greek Swimming Federation.