  One of the most striking signature of supersymmetric models with electroweak
symmetry breaking is the presence of multilepton event topologies in the decay
products. In this paper searches are presented for physics beyond the Standard
Model (SM) in final states containing charged leptons from proton-antiproton
collision data at a center-of-mass energy of 1.96 TeV, collected with Run II
CDF and D{\O}Detectors in 2002-2006, and corresponding to integrated
luminosities of up to 1.1 fb$^{-1}$. In any of the searches no excess of
candidates was observed with respect to the SM predictions and limits on masses
and production cross-sections are set at the 95 % CL.
