Träslövsläge is a locality situated in Varberg Municipality, Halland County, Sweden, with 2,600 inhabitants in 2010.Träslövsläge has a fishing harbour. Due to harbour expansion during the 20th century, this harbour has become the largest fishing harbour in Halland County. A part of the early settlements still exists along the narrow Storgatan. Träslövsläge has grown southwards and eastwards. Next to the fishing harbour lies a well-equipped marina.