We analyse the thermodynamic properties of a noncommutative geometry inspired Reissner–Nordström black hole in a nonlinearly deformed spacetime. Throughout this work, the same noncommutative parameter \(\theta\) is used to encode the effects of the minimal length scale in both the geometric and thermodynamic analyses. The combined effects of noncommutativity and nonlinear deformation on the horizon structure, temperature, entropy, and heat capacity are examined. Significant deviations from classical behaviour are found in the small-mass regime, suggesting the presence of a stable black hole remnant. In particular, the nonlinear radial deformation is shown to induce genuinely novel thermodynamic phases that are absent in the standard Nicolini-type smearing construction, including stable configurations and a thermodynamic remnant with positive heat capacity. Although the nonlinear deformation is introduced at the effective geometric level and is not derived from a specific modified action principle, it is firmly grounded in the Generalised Uncertainty Principle and provides a fully self-consistent effective description of minimal-length physics in charged black hole thermodynamics.
