Cognomen Ducado (Dux 
, Ducado 
) , all over the world, is quite a rare family name. The last name Ducado is habitual in Namibia, where it is quite a rare surname, Bahamas, and Switzerland. Measured by absolute frequency, the name is most common in Philippines, Germany, and the United States. Very seldom, Ducado is the forename as well as the last name.
May, Mercy, Mylen, Susan, Ariel, Arnel, Adora, Avito, Cesar, Cezar, Briza, Karen, Peter, Ramon, Randy, Raffy, Rodel, Rolly, Rolie, Roger, Rovel, Rowel, Maria, Eric, Elmo, Elma, Mae, Roy, Rea, Dan, Jay, Mark, Alex, Anna, Raul, Rene, Ricky, Ruth, Liza, Jose, John, Joel, Jovy, Juan, Judy, Nida, Noel, Elsa, Leah, and Rizza