YA, yA, or Ya may refer to:
Language
- Ya (arrow), the Japanese word for arrow
- Ya (Cyrillic) (Я), a Cyrillic alphabet letter
- Ya (Javanese) (ꦪ), a letter in the Javanese script
- Ya (kana), the Romanisation of the Japanese kana や and ヤ
- Yāʼ, Arabic letter ي
- Ya, a vocative particle in Arabic and other Semitic languages
Units of measurement
- years ago (ya), a unit of time
- Yoctoampere (yA), an SI unit of electric current
- Yottampere (YA), an SI unit of electric current
Arts, entertainment, and media
- ¡Ya!, an album by the band Marquess
- Я (transliterated ya, meaning I am), a 2009 Russian sci-fi film (ru:Я (фильм)) with Artur Smolyaninov and Oksana Akinshina
- Yahoo! Answers (YA), a community-driven question-and-answer site
- Young Ace (YA), a Japanese magazine
- Young adult fiction, fiction marketed to young adults
Other uses
- Yet another (YA), a common initial part of acronyms
- YoungArts (YA), a scholarship program for American high school students
See also
- Ya-ya (disambiguation)
- Yah (disambiguation)
- Yaya (disambiguation)
- Yea (disambiguation)
- Yeah (disambiguation)