Yes as Esther was a queen, it is a royal name.
The name Esther is a name for a girl. It could be that a boy was named Esther, but that doesn't change the fact that Esther is traditionally a girl's name.
Esther Bejarano's birth name is Esther Loewy.
Esther Blackmon's birth name is Esther Parnell.
Esther Ralston's birth name is Esther Worth.
Esther Ofarim's birth name is Zaied, Esther.
Esther Gorintin's birth name is Esther Gorinsztejn.
Esther Krimmel's birth name is Esther Mulvihill.
Esther is a girls name.
Esther McCracken's birth name is Esther Helen Armstrong.
Esther Mamet's birth name is Esther Lorraine Mamet.
Esther Shapiro's birth name is Esther June Mayesh.
Esther Freud's birth name is Esther Lea Freud.