HD 102329 is an orange K-type dwarf (about 3.21 solar masses, 4,745 K, 9.82 solar radii), 217 light-years from Earth. HD 102329 b is a 8.16-Jupiter-mass companion, with an orbital period of 2.13 years, at 1.810 AU from its star, on an eccentric orbit (e ≈ 0.21), discovered in 2011 via radial velocity. HD 102329 c is a 1.52-Jupiter-mass companion, with an orbital period of 3.07 years, on an eccentric orbit (e ≈ 0.21), discovered in 2016 via radial velocity. Mutual gravitational tugs between the planets can slowly reshape their orbits, preserving clues to the system's assembly.