86 Aquarii (abbreviated 86 Aqr) is a binary star system in the equatorial constellation of Aquarius. 86 Aquarii is the Flamsteed designation, though it also bears the Bayer designation c<sup>1</sup> Aquarii. It is faint but visible to the naked eye with an apparent visual magnitude of +4.47. Based upon parallax measurements, the distance to this star is about .
The two components of this system have an angular separation of 0.25 arcseconds. The brighter component is a giant star with a spectral classification of G8 III and an apparent magnitude of 4.79. The effective temperature of its outer atmosphere is 4,900 K, giving it the yellowish glow of a G-type star. The fainter component is a star of magnitude 6.77.