Worldwide, Rathjen (Rathjen ) is an extremely rare feminine first name. Much more prevalently, Rathjen is the last name as well as the forename.
Rath
Mr, Guy, Leo, Les, Lee, Liz, Lou, Jan, Don, Jon, Joy, Jim, Tom, Ted, Tim, Nan, Val, Joe, Dan, Dee, Ron, Ms, Bo, Jo, Tr, Ed, Max, Sue, Ana, Ann, Art, Amy, Ben, Bob, Kay, Ken, Kim, Pat, Ian, and Uwe
) is an extremely rare feminine first name. Much more prevalently, Rathjen is the last name as well as the forename.