XAU
XAU stands for:
- Saul Airport (IATA code), French Guiana
- Troy ounce , abbreviation in the ISO 4217 standard for the price of one troy ounce of gold (= 31.1034768 grams)
- Philadelphia Gold and Silver Index , a stock index of the NASDAQ OMX PHLX (formerly the Philadelphia Stock Exchange)
- Authentication protocol for the X Window System
xau stands for:
- Kauwera (ISO-639-3 code), Papuan language of the Kwerba branch of the Tor Kwerba languages in Indonesia
