Family name Oilar (Oilar 
) , in the world, is a rare surname. The surname Oilar is characteristic of the United States, where it is a very rare surname, Canada, and Brazil, where it is an extremely rare surname. Much less frequently, Oilar is the forename as well as the last name.
Sam, Dawn, Doug, Gary, Levi, Lisa, Lori, Jana, Jawn, Josh, John, Jean, Jeff, Judy, Jill, Tony, Neal, Elsa, Walt, Maria, Malik, Molly, Dale, Dana, Dean, Ryan, Ann, Abi, Amy, Kim, Pat, Joe, Joy, Mary, Mike, Sean, Megan, Sgry, Alan, Alma, Andy, Arny, Acel, Chad, Keri, Kimm, Kyle, Reba, Alec, and Mitch