Eri Jabotinsky (Hebrew: עֵרִי זַ׳בּוֹטִינְסְקִי, also transliterated Ari, 26 December 1910 – 6 June 1969) was a Revisionist Zionist activist, Israeli politician and academic mathematician.

Following the arrest of his father the following year, he moved to France, attending high school in Paris and later earning a degree in electrical engineering.

A long-term member of Revisionism's Betar youth movement, he became one of its representative leaders in 1936, and joined its worldwide board two years later.

There, together with Hillel Kook's 'Bergson Boys', Aryeh Ben-Eliezer, Shmuel Merlin and Yitzhak Ben-Ami among others, he founded the Emergency Committee to Save European Jewry.

On 20 February 1951 however, Jabotinsky and Hillel Kook left Herut, and sat as independents for the rest of the term, although the move was not recognised by the house committee.