This article lists the birds found in the Indian state of Tamil Nadu. 583 species of birds have been spotted in Tamil Nadu. The list also sometimes includes the local Tamil name in italics or the Tamil name in Tamil script following the English common name. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of the IOC World Bird List, version 11.2. This list also uses British English throughout. Any bird names or other wording follows that convention.
The following tags have been used to highlight several categories. The commonly occurring native species do not fit within any of these categories.
- (A) Accidental - also known as a rarity, it refers to a species that rarely or accidentally occurs in Tamil Nadu - typically less than ten confirmed records
- (I) Introduced - a species introduced to Tamil Nadu as a consequence, direct or indirect, of human actions