Vāyu-Vāta or Vāta-Vāyu (IPA: ʋɑːyu-ʋɑːt̪ə) is the Avestan language name of a dual-natured Zoroastrian divinity of the wind (Vayu) and of the atmosphere (Vata).

[3] The entity is simultaneously benevolent and malevolent, that is, depending on the circumstances, either yazata - "worthy of worship" - or daeva, which in the Gathas is a "god that is (to be) rejected".

Scripture frequently applies the epithet "good" when speaking of one or the other in a positive context.

[4] Both the words Vāta and Vāyu have almost identical meanings in Sanskrit or Vedic traditions.

The word Vata is still used today in many Indian languages to denote atmosphere.