Esti Rosenberg (Hebrew: אסתי רוזנברג; born July 24, 1965) is an American-Israeli Orthodox Rabbanit who is the founder and head of the Migdal Oz seminary.

[2] Esti Rosenberg was born in 1965 in the United States, the fourth child of her parents, Aharon Lichtenstein and Tova Lichtenstein, and immigrated to Israel with her parents on Aliyah in 1971 at the age of six, when her father was offered the position of Rosh Yeshiva at Yeshivat Har Etzion.

In 1997 she founded Migdal Oz, the sister school of Yeshivat Har Etzion, under the guidance of Aharon Lichtenstein and Yehuda Amital.

Rosenberg believes, in line with the views of her grandfather Joseph B. Soloveitchik, that Torah study is a fundamental and significant component of Avodat Hashem for the Jewish woman.

Therefore, she calls upon her students to influence all areas of life in Israeli society, especially in the professions of teaching and education.