AbstractWe construct the minimal dark matter models in the left–right symmetric extensions of the standard model (SM), where the gauge symmetry SU(3)C×SU(2)L×SU(2)R×U(1)B−L is broken into its subgroup SU(3)C×U(1)em by nonzero VEVs of a SU(2)R doublet HR and a SU(2)L×SU(2)R bidoublet H. A possible candidate of dark matter is explored in the framework of minimal dark matter considering SU(2)L,R multiplet scalar bosons and fermions. Then we focus on SU(2)R quintuplet fermions with B−L charges 0, 2 and 4 as the minimal dark matter candidates and investigate their phenomenology. We show that the dark matter in the model can provide observed relic density with 2 TeV W′ boson which is motivated by the ATLAS diboson excess and CMS eejj excess. The possible mass of dark matter is predicted for each B−L charge. We then estimate the scattering cross section of dark matter with nucleon and production cross section of charged components in the quintuplets at the LHC.