Isakas Segalis (1922–?) was born in Vilnius. In 1940, he graduated from the “Tarbut” private Jewish Gymnasium in Vilnius. On 10 September 1940, Segalis applied to enter the Economics Department at the Faculty of Law of Vilnius University, but his application was denied. On 11 October 1940, he appealed against this decision. Segalis’ application was reassessed, and he was admitted to the Faculty of Economics of Vilnius University. On 19 September 1941, he was expelled from the university by the Order of 17 September 1941 of the Department of Higher Education under the Board of Education, which was subordinate to the National Socialists. No further information on the fate of Segalis is known.