Pai language

Pai language may refer to:
 * Pe language or Pai, a minor Plateau language of Nigeria
 * Pei language or Pai, a Sepik language spoken in Papua-New Guinea
 * Pai languages, a subgroup of the Yuman–Cochimí language family of North America
 * Pai language (Bantu), related to Sotho
 * Bai language (formerly romanized as Pai), a Sino-Tibetan language spoken in Yunnan, China