Yax, yax or YAX may refer to:
Angling Lake/Wapekeka Airport (IATA airport code: YAX), in Ontario, Canada Mbunda language (ISO 639 language code: yax) Yax Lizard, an urban legend lizard Hugo Alfredo Tale-Yax, a notable victim of the bystander effect a yak character in the Disney film Zootopia Yax, one of the 18 months of the Haab', a part of the Maya calendric system