Dhamsana, also transliterated as Dhamsona, is a union parishad under Savar Upazila, Dhaka District, Dhaka Division, Bangladesh. The union covers an area of 32.77 square kilometres. Its parishad office is located in Bolibhadra Bazar area. In the year 2011, Dhamsana is the most populous union in Bangladesh, with a total population of 308,024.