Qux

Qux or variation, may refer to:


 * Yauyos–Chincha Quechua (ISO 639 language code: ), a South American language
 * Quadra FNX Mining (stock ticker: ), a Canadian mining company
 * Qüxü County (geocode ), Tibet, China; see List of administrative divisions of the Tibet Autonomous Region
 * (computer science), a commonly defined metasyntactic variable
 * (programming), a common placeholder name
 * (radiotelegraphy), a Q-code encoding the phrase Do you have any navigational warnings or gale warnings in force?
 * Unicode symbol U+A40D (qux), see Yi Syllables