Cognomen Iaus (Iaus 
) , all around the world, is a very rare last name. The cognomen Iaus is habitual in Northern America, particularly the United States, where it is an extremely rare surname. More prevalently, Iaus is the forename as well as the last name.
Max, Garten, Fermel, Walter, Wieden, Sandbuhl, Claudia, Bargecho, Bonetti, Goliath, Rudolf, Ierbert, Seewadel, Paradies, Justinus, Moulin-Neuf, Alexander, Gutenberg, Iansruedi, Jacqueline, Wackerling, Magnolia, Regina, Besinnung, Belair, Bob, Uri, Urs, Bach, Bern, Biel, Karl, Kind, Park, Gmbi, Eibe, Viva, Sonne, Bibel, Ruden, Josef, Tabea, Otmar, Zinne, Martin, Marcel, Morgenstern, and Universitat