Gmina Sidra is a rural gmina (administrative district) in Sokóà Âka County, Podlaskie Voivodeship, in north-eastern Poland. Its seat is the village of Sidra, which lies approximately north of Sokóà Âka and north of the regional capital Biaà Âystok.
The gmina covers an area of , and as of 2006 its total population is 3,916.
Gmina Sidra is bordered by the gminas of Dàbrowa Biaà Âostocka, Janów, Kuà ºnica, Nowy Dwór and Sokóà Âka.
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