A fir is a type of evergreen coniferous tree.

Look up fir in Wiktionary, the free dictionary.

Fir, FIR or F.I.R. may also refer to:

• F.I.R., a Taiwanese pop music group
• F.I.R. (album)
• F. I. R. (1999 film), a Malayalam action film
• FIR (2022 film), a Tamil-language action thriller film
• F.I.R. (TV series), an Indian sitcom
• Falling in Reverse, an American rock band
• FIR (2021 film), a Bengali crime thriller film

• Far infrared
• Finite impulse response
• Free ideal ring
• Flight information region
• FiR 1, the first nuclear reactor in Finland
• Research Institute for Operations Management (German: Forschungsinstitut für Rationalisierung), in Germany

• Fir, an alternative spelling of Fier, a city in Albania
• Firan language (ISO 639-3 language code: fir)
• First information report, a police document in some countries
• Flats Industrial Railroad, a former US company
• International Federation of Resistance Fighters – Association of Anti-Fascists (French: FIR Fédération Internationale des Résistantes – Association des Antifascistes)
• Italian Rugby Federation (Italian: Federazione Italiana Rugby)
• USCGC Fir, 2 US Coast Guard ships

• FIRS (disambiguation)
• The Firs (disambiguation)

This disambiguation page lists articles associated with the title FIR.
If an internal link led you here, you may wish to change the link to point directly to the intended article.

Fir is also the Irish Meaning for Men or Man and can be seen on Toilet doors in most public buildings in Ireland.