HD 104985 b, also named Meztli /ˈmɛstli/, is an extrasolar planet approximately 97 parsecs (317 lys) from the Sun.

The 198-day period planet orbits the yellow giant star HD 104985 (Tonatiuh) at a distance of 0.78 AU.

In July 2014 the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars.

[4] In December 2015, the IAU announced the winning name was Meztli for this planet.

[5] The winning name was submitted by the Sociedad Astronomica Urania of Morelos, Mexico.