Arbazhsky District (Russian: Арба́жский райо́н) is an administrative and municipal district (raion), one of the thirty-nine in Kirov Oblast, Russia. It is located in the southwest of the oblast. The area of the district is 1416 km2. Its administrative center is the urban locality (an urban-type settlement) of Arbazh. The population of Arbazh accounts for 48.6% of the district's total population.