Alternate Names: Guaiapi, Guayapi, Oiampí, “Oiampipucu” (pej.), Oyampí, Oyampík, “Oyampipuku” (pej.), Oyanpík, Waiampi, Waiãpi, Wajapae, Wajapuku, Wayapae, Wayãpi
Dialects: Amapari Wayampi, Jari, Oiyapoque Wayampi. Monolinguals include children under 6, more than half the women, most men over 45, and all of those recently from Brazil.
Genealogy:
Demographics: 530 in Brazil (2000 SIL). Includes 520 speakers of Amapari, 10 of Oiapoque. Population total all countries: 1,180.
Language Use: All still speak their native language but knowledge of Portuguese [por] is growing (Crevels 2007). Also use Portuguese [por] (Crevels 2007).
Language Development: Literacy rate in L1: 10%–30%. Literacy rate in L2: Below 5%. Dictionary. Grammar. NT: 2003.
Writing System: Latin
Nation of Origin: Brazil