Abtolemus (Hebrew: אבטולמוס , Avtolemus; Greek: Εὔτολμος) was a Jewish Tanna sage of the third Generation. Jose ben Halafta was his disciple. He is cited in the Mishnah and Tosefta, attesting on the Jewish law of Halkha, on the authority of "Five Elders".
Some are in the opinion that he may be the same Abtolemus b. Reuben, that is cited in the Babylonian Talmud:
"Abtolmus b. Reuben however was permitted to cut his hair in the Gentile fashion  as he was in close contact with the royals".
- ^ Talmud, Erubin, ch. 2:11
- ^ (Hebrew: קומי, Kommi), Gentile fashion at the time: baldness from the forehead on, up to midst of the head, and hair grow from the midst of the head up to the nape.