Microchurch, short from micronational church, is a term and a micropatriological concept introduced by Yaroslav Mar to describe a micronational religion and resolve the often observed contradiction between the tenets of micronational religions and the macronational religious beliefs (or lack thereof) of their adherents. The concept suggests that microchurches are to macronational religions what micronations are to macronations.
In the micronational community, several individuals have formed their own religions. Most religions created in the micronational community are developed as serious attempts at alternative religions. Several are created in protest to already existing ones while some are developed as hobbies, or, in a similar way that a micronation is devoted to (developed merely for the sake of developing).
Several states have chosen an established religion (generally Christianity) for their national religions. Ashukovo, Juclandia and New Israel all observe Christianity. Restorationism, in the form of Christianity or another religion (or the blending of several religions) is practiced notably in the Holy Kingdom of Deseret and the now-defunct state of Snežanopol.
From the point of view of congregationalism, the creation of a new church — including a micronational one — does not pose any dogmatic problems. However, many micronations choose to establish new churches of episcopal denominations, such as the Orthodox Church of Ashukovo or the Juclandian Orthodox Church, which from the point of view of Orthodox or Catholic Christianity constitutes an act of schism inflicting excommunication.
The concept of microchurch suggests that the creation of a micronational church is not an act of schism against the "macrochurch" any more than the creation of a micronation is an an act of treason against the host macronation, and just like most micronationalists remain loyal citizens of their macronations, most "microchurchists" remain faithful to their macrochurches.