Al Mukaynis (Arabic: مكينس) is a locality of Mebaireek located in the municipality of Ar Rayyan, Qatar.

Lorimer's Gazetteer of the Persian Gulf, Al Mukaynis was mentioned as a stopover on the route from Hofuf to Doha as early as 1908.

It forms part of the northern zone of the southern desert region, which occupies 34.7% of Qatar's total area.

The area around Al Mukaynis is part of a region characterized by a mix of rocky plains (hamada) and sand dunes.

[5] Al Mukaynis is near an area of geological interest, characterized by Miocene-era formations that are distinct from the surrounding older rock types.