ISO 639-5:2008 "Codes for the representation of names of languages—Part 5: Alpha-3 code for language families and groups", iyo an pinaka daing kompleto nin estandarteng internasyonal na pinublikar kan International Organization for Standardization (ISO).  Nahimo ini kan ISO Technical Committee 37, Subcommittee 2, asin enot na napublikar kan Mayo 15, 2008.  Parte ini kan mga estandarteng seryo nin ISO 639.