Look up yag, yağ, or YAG in Wiktionary, the free dictionary.

YAG, YaG, Yağ, or yag can refer to:

• Yttrium aluminium garnet, a synthetic crystalline material made of yttrium, aluminum, and oxygen
• Fort Frances Municipal Airport, an airport near Fort Frances, Ontario, Canada, by IATA code
• YMCA Youth and Government, a program run by the YMCA that allows youth to serve in model governments
• Yahgan language, a language spoken in Chile and Argentina, by ISO 639 code
• Cansu Yağ (born 1990), a women's football midfield player from Turkey
• YAG training vessel, a series of wooden boats built for the Royal Canadian Navy from 1954 to 1955
• A US Navy hull classification symbol: District auxiliary, miscellaneous (YAG)