Globally, Masley (Masley , Маслей ) is a very rare unisex first name. Much more frequently, Masley is the last name as well as the forename.
Maslei, Maslej, Маслеи, and Маслеы
Mr, Phil, Rick, Rita, Ruth, Dena, Dean, Danl, Dale, Duck, Paul, Gary, Lily, Lisa, Lori, Lynn, Jane, Jana, Jack, John, Joan, Greg, Joel, Kera, Chad, Ed, Sue, Ana, Ann, Amy, Ben, Kay, Don, Lee, Kate, Liz, Tom, Tim, Mary, Mark, Mike, Seth, Alex, Alan, Anne, Jon, and Jodi
, Маслей 
) is a very rare unisex first name. Much more frequently, Masley is the last name as well as the forename.