| Wadi Qada'ah | |
| Name Other: | Wādī Kidā'ah |
| Image Alt: | Alt text for image |
| Map Size: | 300px |
| Map Alt: | Alt text for map |
| Pushpin Map: | UAE#Persian Gulf#Middle East#West Asia |
| Pushpin Map Size: | 300 |
| Subdivision Type1: | Country |
| Subdivision Name1: |  United Arab Emirates |
| Subdivision Type2: | Emirate |
| Length: | 15.3km (09.5miles) |
| Source1: | Northern slope of Jabal Tafif, in the Sultanate of Oman |
| Source1 Elevation: | 1268m (4,160feet) |
| Mouth: | Wadi al Bih |
| Mouth Coordinates: | 25.7823°N 56.0629°W |
| Mouth Elevation: | 92m (302feet) |
| River System: | Wadi al Bih |
| Basin Size: | 483km2[1] |
| Custom Label: | Custom label |
Wadi Qada'ah (Arabic: وادي قداعة|Wādī Kidā'ah)[2] is a valley or dry river, with intermittent flow, which flows almost exclusively during the rainy season, located about 10 kilometers east of Ras Al Khaimah, United Arab Emirates. The wadi flows into the Wadi Bih.[3] [4]
Hedgehogs and caracals live in the valley,[5] and dates have been grown at the higher elevations.[6]
In the upper reaches of the Wadi Qada'ah is the historic village of Qada'ah, very close to the border between UAE and Oman, and to the north and northeast of the wadi, rises the impressive southern slope of Jabal Qada'ah,[7] also known as Jabal Al Ahqab,[8] with an elevation of 1,375 m and a prominence of 460 m, making it one of the highest peaks in the UAE.
In Wadi Qada'ah there are several excellent hiking routes, but also rock climbing and canyoning areas, not suitable for hiking. Accidents involving people who enter areas that are inappropriate for hiking are frequent.[9] [10] [11]
Alternative Names: Wadi Kida'ah, Wadi Qida'a, Wadi Qada`a, Wadi Qada`ah, Wadi Qadda`a, Wādī Qada'a, Wādī Qada'ah, Wādī Qadda'a, Wadi Quda'ah.
It also appears, with the spelling Wādī Kidā'ah, in the National Atlas of the United Arab Emirates.[12]