Chavdar Municipality is one of the municipalities in Sofia Province, Bulgaria. The seat is at Chavdar, Sofia Province.

According to the latest Bulgarian census of 2011, the religious composition, among those who answered the optional question on religious identification, was the following:

Religious composition of Chavdar Municipality Orthodox Christianity   86.8% Catholicism   0.4% Protestantism   0.0% Islam   0.0% No religion   8.5% Prefer not to answer, others and indefinable   4.3%

42°39′N 24°03′E / 42.650°N 24.050°E / 42.650; 24.050