Paia may refer to:

PAiA Electronics, an American synthesizer kit company established in 1967 Paia, Hawaii, a census-designated place in Maui County, Hawaii Paia, Achaea, a municipal unit in Achaea, Greece Paia, a type of embutido, an Iberian variety of cured, dry sausage Promotion of Access to Information Act, 2000, a South African law Grete Paia (born 1995), an Estonian singer Ian Paia (born 1990), a Solomon Islands footballer Paia (Samoa), a village in the Gagaʻifomauga district of Samoa

See also Botoșești-Paia, a commune in Dolj County, Romania Paio (disambiguation)