Samar Bagh is an administrative subdivision (Tehsil) of Lower Dir District in the Khyber Pakhtunkhwa province of Pakistan. The other tehsils of the district include:

Lower Dir District Tehsils have 37 Union Councils. The population is 797,852, according to the 1998 census. The projected population of Dir Lower was 1,037,091 in 2005 with the same growth between the 1981 and 1998 census i.e. 3.42% per annum.