On October 4, 2025, a celebration was held in California marking the centenary of Orthodox Christian pilgrimages to Fort Ross, the first site of Orthodox worship on the continental U.S. The Divine Liturgy was led by Metropolitan Tikhon (OCA), with bishops from both the Russian and American Orthodox Churches in attendance. Nearly 400 pilgrims participated, followed by a procession and a litany commemorating the first Orthodox settlers at the site.

On October 5, 2025, Estonian President Alar Karis filed a lawsuit in the Constitutional Court challenging a law that mandates the Estonian Orthodox Church sever ties with the Russian Patriarchate. He argued that the law infringes on freedom of religion and could increase the influence of foreign religious leaders in Estonia. The law, passed by the Estonian Parliament in September, threatens the legal status of the Estonian Orthodox Church, prompting Metropolitan Eugene of Tallinn to call for intensified prayer.

On October 5, 2025, Serbian Patriarch Porfirije consecrated the Church of Saints Cyril and Methodius in Maribor, Slovenia, and led its first liturgy. In his address to the faithful, he emphasized the church as a house of prayer and love, urging all to seek salvation through faith and repentance. The original church was destroyed during World War II, and the church community has been rebuilding since the 2000s. Thousands of believers greeted the Patriarch during his visit.

On October 8, 2025, on the feast of St. Sergius of Radonezh, Patriarch Kirill of Moscow hosted a delegation from the Macedonian Orthodox Church at the Trinity-Sergius Lavra. The delegation, including Metropolitan Petar, Bishop Nikolaos, and Archimandrite Afanasiy, participated in the Divine Liturgy. Patriarch Kirill expressed his joy over their presence and exchanged commemorative gifts.

On October 8, 2025, Patriarch Kirill sent his congratulations to Russian President Vladimir Putin on his 73rd birthday. The Patriarch highlighted Putin's years of service and his significant contribution to the development of the country. He also expressed gratitude for the President’s ongoing support of the Russian Orthodox Church and joint efforts to strengthen spiritual values and patriotism.

In Iasi, Romania, the annual celebrations in honor of St. Paraskeva began on October 8, 2025, with a procession carrying her relics to the cathedral. Despite rainy and cold weather, 24,500 pilgrims gathered to venerate the relics. Metropolitan Teofan of Moldavia and Bukovina spoke of the spiritual joy experienced by the pilgrims. The celebrations will continue until October 14, culminating in a Divine Liturgy, with the relics of St. Gregory Palamas also being brought to the shrine.

On October 8, 2025, the Holy Synod of the Jerusalem Patriarchate convened to confirm Archimandrite Simeon as the new Archbishop of Sinai, Pharan, and Raith. His ordination will take place on October 19, 2025, at the Church of the Holy Sepulchre. The Synod also discussed relations with the Sinai Brotherhood, the status of Russian-speaking parishes, and concluded with prayers for peace in Gaza.

On October 7, 2025, the Holy Synod of the Antiochian Orthodox Church began its sessions at the Monastery of the Blessed Virgin Mary in Balamand, Lebanon. Presided over by Patriarch John X, the discussions focused on social, pastoral, and political issues, with a particular emphasis on the Church's role in supporting peace, justice, and the future of Christians in the Middle East. The Synod highlighted the need for the Church to be a "bridge" for national dialogue and a source of hope and stability in times of crisis.