be-ezrat hashem (בעזרת השם)
It depends on the religion. In Judaism, it is called the Ezrat Nashim (עזרת נשים) or Women's Section. In Islam, there is no traditional name for it, so it can be called a "Women's Chapel" a "Women's Area" or Qaa3a Khaasa lel-Nesaa' (قاعة خاصة للنساء) which means "Private Chamber for Women".
The Ezrat Nashim (עזרת נשים) or Ladies' Section/Gallery exists only in Orthodox Synagogues. In those synagogues, the women sit apart from the men in order to help both the men and the women focus on the prayers instead of on each other. The Ezrat Nashim is where the women sit. Answer: Orthodox synagogues have separate seating areas for men and women during services. In many synagogues, the women sit upstairs in a balcony. This is called the women's section, or ladies' gallery. In other synagogues the women's section can be adjacent to or behind the men's section, but separated by a curtain or other partition.