Bamna (Bengali: বামনা) is an upazila of Barguna District[3] in the Division of Barisal, Bangladesh.

According to the 2011 Census of Bangladesh, Bamna Upazila had a population of 79,564 living in 19,537 households.

Bamna has a literacy rate (age 7 and over) of 61.1%, compared to the national average of 51.8%, and a sex ratio of 1018 females per 1000 males.

The union parishads are subdivided into 39 mauzas and 49 villages.

[4] This Barisal Division location article is a stub.