Nonlocal contact problem for two-dimensional linear elliptic equations is stated and investigated. The method of separation of
variables is used to find the solution of a stated problem in the case of Poisson’s equation. Then, the more general problem with
nonlocal multipoint contact conditions for elliptic equation with variable coefficients is considered, and the iterative method to
solve the problem numerically is constructed and investigated. The uniqueness and existence of the regular solution are proved.
The iterative method allows reducing the solution of a nonlocal contact problem to the solution of a sequence of classical boundary value problems.
