Worldwide, Osz (Osz 
) is an extremely rare masculine first name. More frequently, Osz is the last name as well as the forename.
Mr, Marta, Marge, Marek, Sarah, Shawn, Steve, Alexo, Anita, Agata, Maria, April, Kamil, Kevin, Peter, Piotr, Debra, David, Dawid, Donna, Janos, Beata, Troy, June, Jola, Ms, Bo, Mil, Ava, Kim, Dan, Jan, Eva, Maã, Miã, Mił, Alex, Alan, Anna, Ania, Adam, Bart, Bela, Rita, Ryan, Jose, Jacek, and Jerzy