TOI-5126 is a Sun-like F-type star (about 1.24 solar masses, 6,150 K, 1.24 solar radii), 160 light-years from Earth. TOI-5126 b is a planet with 4.7 Earth radii, with an orbital period of 5.5 days, at 0.065 AU from its star, and an equilibrium temperature near 1,442 K, discovered in 2023 via transit. TOI-5126 c is a planet with 3.9 Earth radii, with an orbital period of 17.9 days, at 0.144 AU from its star, and an equilibrium temperature near 971 K, discovered in 2023 via transit.