This is a list of the bird species recorded in Iran. The avifauna of Iran include a total of 653 species, of which two are endemic, and 4 have been introduced by humans. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of The Clements Checklist of Birds of the World, 2019 edition. The family accounts at the beginning of each heading reflect this taxonomy, as do the species counts found in each family account. Introduced and accidental species are included in the total counts for Iran. The following tags have been used to highlight several categories. The commonly occurring native species do not fall into any of these categories.
* (A) Accidental - a species that rarely or accidentally occurs in Iran
* (E) Endemic - a species endemic to Iran
* (I) Introduced - a species introduced to Iran as a consequence, direct or indirect, of human actions
* (Ex) Extirpated - a species that no longer occurs in Iran although populations exist elsewhere

This is a list of the bird species recorded in Iran. The avifauna of Iran include a total of 653 species, of which two are endemic, and 4 have been introduced by humans. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of The Clements Checklist of Birds of the World, 2019 edition. The family accounts at the beginning of each heading reflect this taxonomy, as do the species counts found in each family account. Introduced and accidental species are included in the total counts for Iran.