When the State of Greater Lebanon was established in 1920, the Jewish Community Council of Beirut was officially recognized as the central administrative body within Lebanon, and although smaller communities such as Sidon and Tripoli also had their own councils they were consequently made subject to the authority of Beirut. In this context of political overhaul, I argue that some Jewish actors made use “from below” of political opportunities provided by sectarianism “from above”—or national sectarianism—to garner control over all Jewish political structures in Lebanon. But by examining in particular activities in and around the Israelite Community Council in Sidon (al-Majlis al-Milli al-Isra'ili bi-Sayda), I show how and why these attempts to practice new forms of sectarianism were met with resistance, despite connections that tied Lebanon's Jews together administratively in one community.