Kirkovo Municipality is a municipality in Kardzhali Province, Bulgaria. The administrative centre is Kirkovo.

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 Kirkovo Municipality Orthodox Christianity   6.2% Catholicism   0.3% Protestantism   0.1% Islam   82.4% No religion   1.7% Prefer not to answer, others and indefinable   9.3%