Worldwide, Seidman (Seidman , Сейдман , Зайдман ) is an extremely rare boy's first name. Much more frequently, Seidman is the last name as well as the forename.
Saidman, Seidmann, and Zaidman
Mr, Dan, Deb, Rut, Roz, Roy, Ron, Rob, Ray, Pam, Kim, Ken, Kay, Bob, Ben, Avi, Amy, Abe, Ms, Al, Aj, Cy, Ba, Ed, Don, Or, Sam, Sue, Sol, Aly, Ann, Ari, Max, and Dov
, Сейдман 
, Зайдман 
) is an extremely rare boy's first name. Much more frequently, Seidman is the last name as well as the forename.