Martinlaakso (Swedish: Mårtensdal) is a district in Vantaa, Finland. Located in the Myyrmäki major region, it is the second most populous district in all of Vantaa, after Myyrmäki itself. In 2014, Martinlaakso had a population of 11,811, narrowly beating out Hakunila. Martinlaakso was the home for Martinkeskus, which was the largest shopping center in the Nordic countries at the time of its completion in 1960s. Another shopping center in the area is Martinlaakson Ostari, which was completed in 2011.