- Country: Iceland
- Population: 11,421
- Latitude: 64° 5.32' N (64.08865°)
- Longitude: 21° 55.38' W (-21.92298°)
- Elevation: 41 m/135 ft. above sea level
- Time zone: Atlantic/Reykjavik (UTC +00:00); DST not observed
- Alternate names: Gardabairas, Garðabæ, Garðabæjar, Гардабайр, Горад Гардабайр, Ґардабаїр, Գարդաբայր, גארדבאיר, گارذابایر, ჰარდაბაირი, ガルザバイル, 加尔扎拜尔, 가르다바이르
- Alternate names: Gardabae, Gardabaejar, Gardabaer, Gardabair, Gardabairas, Gardabajr, Gardabayr, Garðabaer, Garðabæ, Garðabæjar, Garðabær, Gorad Gardabajr, galeudabaileu, gardhabayr, garuzabairu, hardabairi, jia er zha bai er, Гардабайр, Горад Гардабайр, Ґардабаїр, Գարդաբ
Data by Geonames.org, CC-BY