Barkal Union () is a union, the smallest administrative body of Bangladesh, located in Chandanaish Upazila, Chittagong District, Bangladesh. The total population is 20,460.
The area of Barkal Union is 6,257 acres (25.32 square kilometers).
According to the 2011 Bangladeshi census, Barkal Union had a population of 20,460, of which 10,712 were males and 9,748 were females. The total number of households was 3,928.
Barkal Union is the 4th Union Parishad under Chandanaish Upazila. The administrative activities of this union fall under the jurisdiction of Chandanaiish Thana. It is part of Chittagong-14 (Constituency 291) of the National Parliament of Bangladesh.
According to the 2011 Bangladeshi census, Barkal Union had a literacy rate of 62.0%.