Adam Rózycki Title: Lê numbers and Newton diagram Abstract: Let f : (Cn,0) --> (C,0) be a Newton non-degenerate holomorphic function with non-isolated singularity at 0. We give a formula for the Lê numbers of f in terms of its Newton diagram, provided that these numbers exist. This is a version of the famous theorem of A. G. Kouchnirenko for non-isolated singularity at 0.