Rabbi Ben-Zion Meir Hai Uziel (1880 - 1953) was the Sephardi chief rabbi of the British Mandate of Palestine from 1939 to 1948, and of Israel from 1948 to 1954. Rabbi Ben-Zion was born in Jerusalem, where his father, Joseph Raphael, was the av bet din of the Sephardi community of Jerusalem, as well as president of the community council. At the age of twenty he became a yeshivah teacher and also founded a yeshivah called Mahazikei Torah for Sephardi young men. In 1911, he was appointed Hakham Bashi of Jaffa and the district. In spirit and ideas he was close to the Ashkenazi rabbi of the Jaffa community, Abraham Isaac Kook. In 1921 he was appointed chief rabbi of Salonika. He returned to become chief rabbi of Tel Aviv in 1923, and in 1939 was appointed Chief Rabbi of Palestine. Rabbi Ben-Zion was a member of the Jewish Assembly of Representatives and the Jewish National Council, as well as being a representative at the meeting which founded the Jewish Agency. He was also founder of the yeshivah Shaar Zion in Jerusalem. He made "Love, truth, and peace" (Zechariah 8:19) the motto of his life.

Rabbi Yitzhak HaLevi Herzog (1888 - 1959) was the first Chief Rabbi of Ireland, his term lasting from 1921 to 1936. From 1937 until his death in 1959, he was Ashkenazi Chief Rabbi of the British Mandate of Palestine and of Israel after its independence in 1948. After mastering Talmudic studies at a young age, Yitzhak went on to attend the Sorbonne and then later the University of London, where he received his doctorate. His thesis, which made him famous in the Jewish world, concerned his claim of re-discovering Techelet, the type of blue dye once used for the making of Tzitzit. Rabbi Herzog was recognised as a great rabbinical authority, and he wrote many books and articles dealing with halachic problems surrounding the Torah and the State of Israel. Indeed, his writings helped shaped the attitude of the Religious Zionist Movement toward the State of Israel. In 1958, Rabbi Herzog was awarded the Israel Prize, in Rabbinical lierature.

Rabbi Isser Yehuda Unterman (1886 - 1976) was the Ashkenazi Chief Rabbi of Israel from 1964 until 1972. Born in Brest-Litovsk in modern Belarus, Unterman was educated at the Etz Chaim Yeshiva in Maltsch. There, he became a pupil of its Rosh Yeshiva, Rabbi Shimon Shkop. Returning to Lithuania to complete his studies, Unterman was ordained as a rabbi by Rabbi Refael Shapiro and opened his own yeshiva in the town of Vishova around 1910. Unterman served a variety of roles in the Lithuanian Jewish community until 1924, when he was selected to become the head rabbi of Liverpool. Unterman served in Liverpool for 22 years, becoming an important figure in the English Zionist movement and working to relieve the suffering of refugees in England during the Second World War. In 1946, Unterman became the Chief Rabbi of Tel Aviv, a position he held for twenty years before being appointed Chief Rabbi of Israel. As Chief Rabbi, Unterman worked to reform the rabbinic court system and reach out to secular Israelis. He also wrote opinions on a variety of religious issues relevant to the young Jewish state, such as religious conversion and marriage law.

Rabbi Yitzchak Nissim (1896 - 1981) was born in Baghdad and came to Jerusalem in 1925. In 1955, he was chosen as the Rishon LeZion and the Chief Rabbi of Israel. Rabbi Nissim aspired greatly to establish dialogue and friendship between all parts of the nation, including those who had become estranged from the observance of the Torah's mitzvot. His tours to the most secular kibbutzim, his attitude, his conversations and his great talent in explaining the Jewish position, won the hearts of many who were far from Judaism, increased mutual understanding and brought many closer. Having served as the Chief Rabbi during the crucial period of post-independence, Rabbi Yitzchak Nissim was one of the leaders who participated in shaping and determining the nature of Israel as a Jewish State. Rabbi Yitzchak Nissim made a point of visiting the largest Jewish community of the Diaspora in the United States of America. His mission was clear: bring as many Jews as possible to the understanding that it is their privilege as well as their obligation to make the State of Israel their home. During his tenure as the Chief Rabbi of Israel, the State of Israel became the greatest Torah center in the world. As a result, Rabbi Nissim answered Halachic questions addressed to him from all corners of the world.