Cognomen Koroch (Koroch 
) , across the world, is a rare family name. The surname Koroch is habitual in Poland, where it is a rare surname, Germany, and Argentina, where it is a very rare surname. In absolute terms, this name is the most popular in Germany, Poland, and the United States. Much less frequently, Koroch is the forename as well as the last name.
Mr, Linda, Lidia, Libby, Jaime, Jenna, Julie, Noeli, Eliza, Ernst, Helga, Frank, Filip, Zaira, Samuel, Alexis, Albino, Carlos, Kelley, Kiesha, Reeann, Daniel, Lacie, Javier, Darla, Ruben, Ms, Ana, Tom, Matt, Seba, Alex, Karl, Kyra, Raul, Ryan, Gaby, Greg, Juan, Ella, Marek, Susan, Steve, Anita, Artur, Cleci, Cindi, Danny, and Jerome