The Jewish Agency for Israel (Hebrew: הסוכנות היהודית לארץ ישראל, romanized: HaSochnut HaYehudit L'Eretz Yisra'el) formerly known as the Jewish Agency for Palestine, is the largest Jewish non-profit organization in the world. It was established in 1929 as the operative branch of the World Zionist Organization (WZO). The stated mission of the Agency is to "ensure that every Jewish person feels an unbreakable bond to one another and to Israel no matter where they live in the world, so that they can continue to play their critical role in our ongoing Jewish story."

It is best-known as the primary organization fostering the immigration of Jews in diaspora to the Land of Israel (known as aliyah) and overseeing their integration with the State of Israel. Since 1948, the Jewish Agency has brought 3 million immigrants to Israel, and offers them transitional housing in "absorption centers" throughout the country.

The Jewish Agency played a central role in the founding and the development of the State of Israel. David Ben-Gurion served as its Chairman of the Executive Committee from 1935, and in this capacity on 14 May 1948, he proclaimed Israel's independence, following which he served as the first Israeli prime minister. In the years preceding the founding of Israel, the Jewish Agency oversaw the establishment of about 1,000 towns and villages in the British Mandate of Palestine. The organization serves as the main link between Israel and Jewish communities around the world.

By law, the Jewish Agency is a parastatal organization, but does not receive core funding from the Israeli government. The Jewish Agency is funded by the Jewish Federations of North America (JFNA), Keren Hayesod, major Jewish communities and federations, and foundations and donors from Israel and around the world. In 2008, the Jewish Agency won the Israel Prize for its historical contribution to Israel and to the Jewish community worldwide.