(386723) 2009 YE7 (provisional designation 2009 YE7) is a trans-Neptunian object (TNO) discovered by David Rabinowitz on December 17, 2009, at the La Silla Observatory in Chile.

2009 YE7 has been observed 70 times, with precovery images dating back to 2006, and has an orbital quality code of 4.

When 2009 YE7 was first discovered, it was believed to have an absolute magnitude (H) of 2.8, which would have made it the first bright KBO found from the southern hemisphere.

[5] Since 2009 YE7 has an absolute magnitude dimmer than (H=1), it will not be overseen by two naming committees and will not automatically be listed as a dwarf planet by the International Astronomical Union (IAU).

[3][4] 2009 YE7 has been found to be a member of the Haumea family fragment due to its Haumea-like orbit and the detection of water ice on its surface.