Wals-Siezenheim is a municipality in the district of Salzburg in Salzburg in Austria and carries with 13,243 inhabitants (1 January 2016) the title of "largest village in Austria". The double municipality was founded in 1948 from the villages Wals Siezenheim and. That same year, the award of the coat of arms took place. The population increased in the period 1947-2001 from about 1,000 to about 11,000 residents on. The village of Wals was formerly part of the then independent municipality Siezenheim, but also Liefering and much of Taxhams among Siezenheim.