- YA stands for Years Ago (homo-sapiens evolution)
- YA stands for Young Adult
- YA stands for Yet Another
- YA stands for Year Ago (financial statements)
- YA stands for Young Americans (Drum and Bugle Corps)
- YA stands for Youth Aids
- YA stands for Youth Assembly
- YA stands for Yläaste (Finnish: school)
- YA stands for Yield Analysis
- YA stands for Yellow Armor (gaming)
- YA stands for Yelberton Abraham Tittle (football quarterback)
- YA stands for Yellow Armour (Quake)
- YA stands for District Lighter, Ash (US Navy)
- YA stands for Yellen & Associates (Northridge, CA)
- YA stands for Yleiset Aineet (Finnish, music term)
YA