Kalkalia Union (Bengali: কলকলিয়া ইউনিয়ন) is a union parishad under Jagannathpur Upazila of Sunamganj District in the division of Sylhet, Bangladesh.

It has an area of 21 square kilometres and a population of 38,000.

[1] Kolkolia Union is located at the north-west of Jagannathpur Upazila.

It shares borders with Patli Union and Jagannathpur Municipality in the East, Derai Upazila in the west, Dakshin Sunamganj and Chhatak in the north and Chilaura-Haldipur Union in the south.

1 union council of Jagannathpur Upazila.