Amram Gaon

Amram Gaon (Hebrew: עמרם גאון‎, or Amram bar Sheshna, Hebrew: עמרם בר רב ששנא, or sometimes: Amram ben Sheshna or Amram b. Sheshna; died 875) was a famous Gaon or head of the Jewish Talmud Academy of Sura in the 9th century. He was the author of many Responsa, but his chief work was liturgical.

He was the first to arrange a complete liturgy for the synagogue. His Prayer-Book (Siddur Rab Amram or Seder Rav Amram), which took the form of a long responsum to the Jews of Spain, is still extant and was an important influence on most of the current rites in use among the Jews.