Simeon I
Simeon I may refer to:
- Simon I (High Priest), in the Temple in Jerusalem
- Simeon I, Caucasian Albanian Catholicos in 706–707
- Simeon I of Bulgaria
- Simeon of Moscow, Simeon Ivanovich Gordyi,, Prince of Moscow and Grand Prince of Vladimir
- Simeon I of Yerevan, Catholicos of All Armenians in 1763–1780