TOI-1203 is a Sun-like G-type star (about 0.89 solar masses, 5,737 K, 1.18 solar radii), 65.0 light-years from Earth. TOI-1203 b is a 3.5-Earth-mass planet, with an orbital period of 4.2 days, at 0.049 AU from its star, and an equilibrium temperature near 1,361 K, on an eccentric orbit (e ≈ 0.07), discovered in 2025 via radial velocity. TOI-1203.01 is a 7.4-Earth-mass planet, with an orbital period of 25.5 days, at 0.163 AU from its star, and an equilibrium temperature near 744 K, discovered in 2021 via transit.