| Al-Ukhaydir | |
|---|---|
| Tabuk Province, Saudi Arabia | |
 The fort in 1907 | |
  Al-Ukhaydir | |
| Coordinates | 28°05′30″N 37°07′33″E / 28.091633°N 37.125917°E |
| Length | 20 by 20 meters (66 ft × 66 ft) |
| Site information | |
| Controlled by | Saudi Arabia |
| Condition | Well-preserved |
| Site history | |
| Built | 1531 |
| Built by | Turabay ibn Qaraja |
Al-Ukhaydir (Arabic: الأخيضر; also spelled al-Akhthar, al-Akhdar, al-Akhider, Akhizer), also known as Haydar or Aqabat, is a site in the Tabuk Province in Saudi Arabia, located southeast of Tabuk. During early Ottoman rule, a fort, Qal'at al-Akhdar, was built at the site, part of the larger network of fortifications along the Hajj caravan route to Medina and Mecca.