In the years leading up to the dissolution of the Soviet Union in 1991 and for just over a decade thereafter, a particularly large number of Jews emigrated from the Soviet Union and the post-Soviet countries. The majority of these emigrants made aliyah, while a sizable amount immigrated to various Western countries. This wave of Jewish migration followed the 1970s Soviet aliyah, which began after the Soviet government lifted the ban on the country's refuseniks, most of whom were Jews who had been denied permission to leave the country.

Aliyah is the immigration of Jews from the diaspora to, historically, the geographical Land of Israel or the Palestine region, which is today chiefly represented by the State of Israel. Traditionally described as "the act of going up", moving to the Land of Israel or "making aliyah" is one of the most basic tenets of Zionism. The opposite action — emigration by Jews from the Land of Israel — is referred to in the Hebrew language as yerida. The Law of Return that was passed by the Israeli parliament in 1950 gives all diaspora Jews, as well as their children and grandchildren, the right to relocate to Israel and acquire Israeli citizenship on the basis of connecting to their Jewish identity.