Nikola Kozlevo Municipality (Bulgarian: Община Никола Козлево) is a municipality (obshtina) in Shumen Province, Northeastern Bulgaria, located in the Ludogorie geographical region, part of the Danubian Plain.

The municipality embraces a territory of 265 km2 (102 sq mi) with a population of 6,381 inhabitants, as of December 2009.

[1] Nikola Kozlevo Municipality includes the following 11 places, all of them are villages: The following table shows the change of the population during the last four decades.

According to the 2011 census, among those who answered the optional question on ethnic identification, the ethnic composition of the municipality was the following: [8] According to the latest Bulgarian census of 2011, the religious composition, among those who answered the optional question on religious identification, was the following: Nearly all ethnic Turks are Muslim, while nearly all Bulgarians are Orthodox Christians.

A majority of the Roma people are Muslim, with a large Christian minority.