Syren (Luxembourgish: Siren) is a small town in the commune of Weiler-la-Tour, in southern Luxembourg. As of 2001[update], the town had a population of 416.
Syren is the source of the Syre river, which flows down to the Moselle, through some of Luxembourg's wealthiest districts.
In 2003, there was a fire which destroyed 4 homes.