Laksam (Bengali: লাকসাম) is an Upazila of Comilla District in the Division of Chittagong, Bangladesh. Laksam has 7 Unions/Wards, 136 Mauzas/Mahallas, and 183 villages.
Laksam Upazila with an area of 135.61 km, is bounded by Comilla Sadar and Barura upazilas on the north, chatkhil, begumganj and senbagh upazilas on the south, nangalkot and chauddagram upazilas on the east, Barura and shahrasti upazilas on the west. Main rivers are Dakatia and Little Feni.
Laksam Railway Junction, on the Akhaura-Laksam-Chittagong Line, Laksam-Noakhali Line and Laksam-Chandpur Line is one of the two biggest junctions of Bangladesh. From here People go to Chandpur District, Noakhali District.