The article tells about the imams and muezzins of the Tatar Sloboda (settlement) of Moscow, located in the Zamoskvorechye district (southern part of Moscow), as well as separate ethno-social communities of Moscow, in the beginning of the 19ᵗʰ century. Most оf the information about them is stored in various archives in Russia and is not known to researchers. Archival documents cited in the article, previously unpublished, are being introduced into scientific circulation for the first time.