Kepler-81 is an orange K-type dwarf (about 0.64 solar masses, 4,500 K, 0.59 solar radii), 348 light-years from Earth. Kepler-81 d is a planet with 1.2 Earth radii, with an orbital period of 20.8 days, at 0.128 AU from its star, discovered in 2014 via transit. Kepler-81 b is a planet with 2.4 Earth radii, with an orbital period of 6.0 days, discovered in 2012 via transit. Kepler-81 c is a planet with 2.4 Earth radii, with an orbital period of 12.0 days, discovered in 2012 via transit.