YAA or yaa may refer to:
Yorkshire Arts Association
Young at Art Museum
Young Artist Award
European Film Academy Young Audience Award
Youth Against AIDS, a disbanded international youth network founded in 1999
Anahim Lake Airport, Anahim Lake, British Columbia, Canada
Yodh, the tenth semitic letter. Named Yāʾ, Yaa or Ya'a in Arabic.
Yaa dialect, a dialect of West Teke, a Bantu language spoken in the Republic of Congo and Gabon
Yaminawa language (ISO 639-3: yaa), a Panoan language in Western Amazonia
Yuya, Egyptian courtier during the eighteenth dynasty (c. 1390 BC)
San Andrés Yaá, Oaxaca, Mexico
Yaa (name)
