Cognomen Olesh (Olesh 
, Олеш 
) , all around the world, is a rare family name. The cognomen Olesh is habitual in Ukraine, where it is a rare surname, Myanmar, and Bulgaria. Measured by absolute frequency, it is the most numerous in the United States, Ukraine, and Myanmar. Much less frequently, Olesh is the forename as well as the last name.
Mr, Ryan, Dave, Dora, Gary, Gail, Lisa, John, Jodi, Jeff, Judy, Jill, Tana, Tara, Tony, Todd, Neal, Eric, Evan, Ivan, Olga, Oleg, Rony, Petr, Paul, Kyle, May, Ann, Amy, Joe, Jim, Tom, Ted, Ivy, Mary, Mark, Matty, Mara, Mike, Sara, Sean, Anna, Anne, Amly, Adam, Carl, Cara, Beth, Matt, and Sandy