Dumki (Bengali: দুমকি) is an upazila of Patuakhali District in the Division of Barisal, Bangladesh.

[3] Dumki Upazila is divided into five union parishads: Angaria, Labukhali, Muradia, Pangasia, and Sreerampur.

The union parishads are subdivided into 21 mauzas and 24 villages.

[4] According to the 2011 Census of Bangladesh, Dumki Upazila had 15,542 households and a population of 70,655.

Dumki has a literacy rate (age 7 and over) of 66.4%, compared to the national average of 51.8%, and a sex ratio of 1090 females per 1000 males.