In J.R.R. Tolkien’s The Lord of the Rings, the original Fellowship of the Ring had nine members.
The Fellowship consists of Frodo Baggins, Samwise Gamgee, Merry Brandybuck, Pippin Took, Aragorn, Boromir, Legolas, Gimli, and Gandalf. They leave Rivendell together to help carry the One Ring toward its destruction in Mordor. Their number is deliberately chosen to oppose the nine Ringwraiths, or Nazgûl.
The company represents several peoples and traditions of Middle-earth: four hobbits, two Men, one Elf, one Dwarf, and one Wizard. The group does not remain intact throughout the quest. Gandalf falls in Moria and later returns, while Boromir dies after trying to defend Merry and Pippin. At Amon Hen, the surviving members begin to separate.
The Fellowship should not be confused with the nine Nazgûl. Both groups number nine, but the Fellowship is a mixed company of allies, while the Nazgûl are servants of Sauron.