List of religious leaders in 1990
1989 religious leaders – Events of 1990 – 1991 religious leaders – Religious leaders by year –
Christianity
Catholic churches
Eastern orthodox churches
- Constantinople – Demetrius I, Patriarch of Constantinople (1972–1991)
- Bulgaria – Maxim, Patriarch of All Bulgaria (1971–present)
- Cyprus – Chrysostomos, Archbishop of Nea Justiniana and All Cyprus (1977–present)
- Georgia – Ilia II, Catholicos-Patriarch of All Georgia (1977-present)
- Greece – Seraphim, Archbishop of Athens and All Greece (1973–1998)
- Jerusalem – Diodorus, Patriarch of Jerusalem (1981–2000)
- Romania – Teoctist I, Patriarch of All Romania (1986–2007)
- Russia –
- Pimen I, Patriarch of Moscow and All Russia (1971–1990)
- Alexei II, Patriarch of Moscow and All Russia (1990–present)
- Serbia –
- German, Patriarch of Serbia (1958–1990)
- Pavle of Serbia, Patriarch of the Serbs (1990–2009)
Oriental Orthodox Churches
Protestant churches
Other Christian
Islam
Other
- Universal Pentecostal Church Inc.-Philippines – Bishop Romeo D. Corpuz Sr., Founder and International President(1976-present)
- Jesus Is Lord Church – Bishop Bro. Eddie Villanueva, Founder and International President (1978-present)
- Scientology – David Miscavige, Chairman of the Board of Religious Technology Center [1], highest ecclesiastical official of the Scientology religion [2] (1987-present)