Family name Koelher (Koelher 
) , worldwide, is a rare cognomen. The family name Koelher is habitual in Brazil, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Koelher is the forename as well as the last name.
Mr, Julio, Talia, Flora, Willy, Zilda, Sandra, Saymon, Sergio, Steven, Anildo, Arthur, Branca, Robson, Denise, Daniel, Dalila, George, Leomar, Luhana, Jerica, Talita, Jorge, Jason, Luiza, David, Ms, Ana, Mara, Alan, Rosa, Jose, Joao, Nair, Elza, Vera, Tereza, Ilma, Santo, Suely, Alice, Chris, Carla, Kelly, Paula, Paulo, Pedro, Ramon, Maria, and Nailde