K2-58 (also designated as EPIC 206026904) is a G-type main-sequence star in the constellation of Aquarius, approximately 596 light-years from the Solar System. The star is metal-rich, having 155% of the Solar abundance of elements heavier than helium. The star is located in a region where a hypothetical observer in the K2-58 system can see Venus transiting the Sun.

The planetary system has three confirmed exoplanets, named K2-58 b, K2-58 c, and K2-58 d, discovered in 2016.