(523692) 2014 EZ51 (provisional designation 2014 EZ51) is a large trans-Neptunian object in the scattered disc, approximately 700 kilometres (430 miles) in diameter.

It was discovered on 18 April 2010, by the Pan-STARRS 1 survey at Haleakala Observatory, Hawaii, United States.

Its orbit has an eccentricity of 0.23 and an inclination of 10° with respect to the ecliptic.

[1] According to Michael Brown and the Johnston's archive, 2014 EZ51 measures 626 and 770 kilometers in diameter, based on an absolute magnitude of 4.2 and 3.8, with an assumed albedo of 0.10 and 0.09, respectively.

[5] In 2023, a study on photometric observations of trans-Neptunian objects by the Kepler space telescope found that 2014 EZ51 rotates with a period of 3.2 hours and exhibits a light curve amplitude of 0.145±0.026 magnitudes, which indicates its shape must be elongated.