There are many local Jewsh communities in Ukraine. Here are links to some national bodies/umbrellas.
One of Ukraine’s main Jewish umbrella organizations
Links to the nearly 40 Chabad-Lubavitch Jewish centers all over Ukraine.
International Jewish organization linking Jewish communities and representative bodies in Eastern Europe and Asia
Information web site, Jewish life around Ukraine
Set up in 1999 by four umbrella organizations: the Union of Jewish Religious Organizations of Ukraine, the Society for Jewish Culture / Jewish Council of Ukraine; the Association of Jewish Organizations and Communities-VAAD of Ukraine; VAAD-AEOOU), and the Kiev City Jewish Community, at a meeting attended by the representatives of 294 Jewish groups. The VAAD withdrew from the organization in 2002.