Canoanele Sinoadelor Ecumenice au autoritate universală, pentru întreaga Biserică Ortodoxă, deși nu în sens absolut. Canoanele acestora au fost adesea respinse sau revizuite prin decizii ale unor Sinoade locale sau chiar ale unor Sinoade Ecumenice ulterioare. Deciziile lor rămân însă elemente centrale ale Tradiției canonice ortodoxe, iar apelul la deciziile acestora ca surse de autoritate este mai frecvent decât pentru orice alt tip de sursă de [[drept canonic]].
Seven or Nine Ecumenical Councils? == As far as some Orthodox are concerned, since the [[Seventh Ecumenical Council]] there has been no synod or council of the same scope as any of the Ecumenical councils. Local meetings of hierarchs have been called "pan-Orthodox," but these have invariably been simply meetings of local hierarchs of whatever Eastern Orthodox jurisdictions are party to a specific local matter. From this point of view, there has been no fully "pan-Orthodox" ('''Ecumenical''') council since 787. Unfortunately, the use of the term "pan-Orthodox" is confusing to those not within Eastern Orthodoxy, and it leads to mistaken impressions that these are ''ersatz'' ecumenical councils rather than purely local councils to which nearby Orthodox hierarchs, regardless of jurisdiction, are invited.
Others, including 20th century theologians Fr . [[John S. Romanides]] and Fr. [[ George Metallinos]] ( both of whom refer repeatedly to the "Eighth and Ninth Ecumenical Councils"), Fr. [[ George Dragas]], Metropolitan [[Hierotheos (Vlachos) of Nafpaktos]] , and the 1848 [[ Encyclical of the Eastern Patriarchs]] ( which refers explicitly to the " Eighth Ecumenical Council" and was signed by the [[ patriarch]]s of [[Church of Constantinople|Constantinople]], [[Church of Jerusalem|Jerusalem]], [[Church of Antioch|Antioch]], and [[Church of Alexandria |Alexandria]] as well as the [[Holy Synod]]s of the first three), regard other synods beyond the [[Seventh Ecumenical Council]] as being ecumenical. Those who regard these councils as ecumenical often characterize the limitation of Ecumenical Councils to only seven to be the result of Jesuit influence in Russia, part of the so-called "[[ Western Captivity of Orthodoxy]]. "
== Lista Sinoadelor Ecumenice ==