Rare decays at LHCb

The rare loop-induced decays are sensitive to New Physics in many Standard Model extensions. In this paper we discuss the reconstruction of the radiative penguin decays B-d(0) -> K*(0)gamma, B-s(0) -> phi gamma, B-d(0) -> omega gamma, electroweak penguin decay B-d(0) -> K*(0)mu(+)mu(-), gluonic penguin decays B-d(0) -> phi K-S(0), B-s(0) -> phi phi and the decay B-s(0) -> mu(+)mu(-) at LHCb. The selection criteria, evaluated efficiencies, expected annual yields and B/S estimates are presented.