Aida District, Okayama

{{nihongo|Aida|英田郡|Aida-gun}} is a district located in Okayama Prefecture, Japan.

As of 2003, the district has an estimated population of 31,845 and a density of 79.65 persons per km². The total area is 399.83 km².

Towns and villages

Aida District consists of the following village:

Prior to March 31, 2005, Aida District included

On that date, all but Nishiawakura merged to form the new city of Mimasaka.

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