Stambolovo Municipality is a municipality in Haskovo Province, Bulgaria. The administrative centre is Stambolovo.

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 Stambolovo Municipality Orthodox Christianity   25.8% Catholicism   0.0% Protestantism   0.4% Islam   71.4% No religion   0.6% Prefer not to answer, others and indefinable   1.8%