Umm al-Qaiwain (Arabic language: أمّ القيوين) is one of the United Arab Emirates. It is in the north of the country, and is ruled by Sheik Rashid ibn Ahmad Al Mu'alla (شيخ راشد بن احمد المعلا).

The emirate had 40,000 inhabitants in 1997, and has an area of 750 square kilometers. The emirate is famous for liqueur trading.

Accepted alternative spellings include Umm al-Qawain, Umm al-Qaywayn, Umm el-Qiwain, and Umm al-Quwain.