The Arrondissement of Sint-Niklaas (Dutch: Arrondissement Sint-Niklaas; French: Arrondissement de Saint-Nicolas) is one of the six administrative arrondissements in the Province of East Flanders, Belgium.
The Administrative Arrondissement of Sint-Niklaas consists of the following municipalities:
Beveren-Kruibeke-Zwijndrecht
Lokeren
Sint-Gillis-Waas
Sint-Niklaas
Stekene
Temse