Al Daayen is a municipality in Qatar. Most of the urban landscape can be found in the southern zone of the municipality, particularly in the city of Lusail, while the northern and central sections are primarily rural. It is one of the fastest growing municipalities in Qatar due to its close proximity to the capital Doha.

Lusail is the second-largest city in Qatar after Doha, and the economic capital of Qatar, located on the coast, in the southern part of the municipality of Al Daayen. Lusail lies about 23 kilometres (14 mi) north of the Doha city centre, just north of the West Bay Lagoon, on over 38 square kilometres (15 sq mi) and will eventually have the infrastructure to accommodate 450,000 people. Of these 450,000 people, it is estimated that there will be 250,000 or fewer residents, 190,000 office workers and 60,000 retail workers.