Worldwide, Millies (Millies 
) is an extremely rare masculine given name. Much more frequently, Millies is the last name as well as the forename.
Mr, Lisa, John, Jodi, Jean, Jeff, Judy, Jill, Nora, Evan, Greg, Hans, Yann, Maria, Myron, Sarah, Susan, Steve, Scott, Brian, Bruce, Fred, Karen, Gene, Rich, Ms, May, Max, Ben, Ron, Dan, J-M, Marc, Mary, Ryan, Mark, Mike, Scot, Andr, Anna, Beth, Kurt, Krys, Paul, Remy, Matt, and Kathy