Throughout the world, Ilsøe (Ilsøe 
) is an extremely rare unknown gender first name. Much more prevalently, Ilsøe is the last name as well as the forename.
Bo, Trine, Helle, Martin, Morten, Sigurd, Stefan, Stinne, Søren, Anders, Anette, Agnete, Casper, Bjørn, Kasper, Jesper, Henrik, Helena, Olivia, Susanne, Carsten, Camilla, Tanya, Jacob, Lasse, Peter, Mia, Kim, Lea, Ole, Sven, Anna, Anne, Peer, Lars, Leif, Cecilie, Lene, Hans, Maria, Marie, Mette, Sisse, Signe, Alice, Brian, Karen, Kjeld, Tina, and Rebekka