OICC Press International Journal of Mathematical Modelling & Computations 2228-6233 7 3 2025 07 14 Determination of a Source Term in an Inverse Heat Conduction Problem by Radial Basis Functions 10.71932/ EN Muhammad Arghand Department of Mathematics, Islamic Azad University, South Tehran Branch, Tehran, Iran. Journal Article 2025 07 14 In this paper, we propose a technique for determining a source term in an inverse heat conduction problem (IHCP) using Radial Basis Functions (RBFs). Because of being very suitable instruments, the RBFs have been applied for solving Partial Dierential Equations (PDEs) by some researchers. In the current study, a stable meshless method will be pro- posed for solving an (IHCP). The other advantage of the method is that can be applied to the problems with various types of boundary conditions. The results of numerical experiments are presented and compared with analytical solutions. The results demonstrate the reliability and efficiency of the proposed scheme.