Surname Roennau (Roennau 
) , across the world, is a rare family name. The family name Roennau is habitual in Libya, where it is a rare surname, Germany, and Denmark. Measured by absolute frequency, it most frequently occurs in Germany, Brazil, and the United States.
Mr, Andre, Katia, Patty, Paulo, Peter, Pearl, Darcy, Lauro, Luigi, Sonia, James, Jorge, Julio, Taina, Nadyr, Norma, Hilda, Frank, Ivone, Oscar, Jason, Susan, Saulo, Magda, Ms, Ary, Ben, Jon, Edy, Ivo, Ida, Marc, Arno, Curt, Luis, Joao, Nair, Elsa, Eric, Hans, Hugo, Fred, Maria, Marco, Marli, Marcio, and Markus