The name Hadassah is a girl's name of Hebrew, Hebrew/Israeli origin meaning "myrtle tree". Hadassah is ranked #722 on our popularity charts and discussed in our forums with posts like "Quick Question Thread?!".
From the experts:
This Hebrew name of Queen Esther is well used in Israel (especially for girls born around the holiday of Purim), and in the US is the name of a Zionist women's philanthropic organization. Formerly shunned as hyper-religious, this name entered the Top 1000 in 2007. The nickname Haddie could make it more usable.