Pekua (Bengali: পেকুয়া) is an upazila, or sub-district, of Cox's Bazar District in Chittagong Division, Bangladesh.

Pekua Upazila is divided into seven union parishads: Barabakia, Magnama, Pekua, Rajakhali, Shilkhali, Taitong, and Ujantia. The union parishads are subdivided into 12 mauzas and 125 villages.

According to the 2022 Bangladeshi census, Pekua Upazila had 45,938 households and a population of 214,357. 12.93% of the population were under 5 years of age. Pekua had a literacy rate (age 7 and over) of 70.62%: 71.07% for males and 70.19% for females, and a sex ratio of 97.83 males for every 100 females. 93,052 (43.41%) lived in urban areas.

As of the 2011 Census of Bangladesh, Pekua upazila had 31,944 households and a population of 171,538. 53,340 (31.10%) were under 10 years of age. Pekua had an average literacy rate of 35.30%, compared to the national average of 51.8%, and a sex ratio of 987 females per 1000 males. 29,182 (17.02%) of the population lived in urban areas.