Ipai or IPAI may refer to:
Innovation Park Artificial Intelligence, an artificial intelligence innovation platform and campus under construction in Heilbronn, Germany Ipai, a subgroup of the Kumeyaay indigenous people of San Diego County, California Ipai language spoken by the subgroup IPAI-26 Tuca, a Brazilian light aircraft developed at the Escola de Engenharia de São Carlos Olyk Ipai (1912–1937), a Mari poet