Freedon Nadd is an ancient Dark Lord of the Sith in the Star Wars Expanded Universe.

This ancient Sith Lord started his life in the opposite direction, as a Jedi student, trained at the Jedi Temple on Ossus some 4,400 years before the Battle of Yavin. He was amazingly open and willing to touch the Force, which may have inevitably led him down the dark path. Even though so strong in the Force, he failed his first true test, when he was told by the Jedi Masters as Ossus that he would not recieve his promotion to become a Jedi Knight.

Enraged with their decision, Freedon Nadd turned to reach out to his anger and struck down Jedi Master Matta Trenayne. Now, fallen to the dark side, there was no turning back. Nadd completely succumbed to the teachings of the Sith and became proficient in the use of dark side Sith magic. Believing that he would never be more than an Sith acolyte, since there could only be one Dark Lord at a time, Freedon grew even more enraged and fled to the jungle moon of Yavin IV, led on by the Force.

While on Yavin IV, he came across former Dark Lord of the Sith Naga Sadow, who had entered suspended animation on the moon at the end of the Great Hyperspace War, and sought to complete his training under Sadow. Before his training was complete however, Freedon felt he was strong enough to conquer and claim the Sith throne as his own. He killed Sadow and travelled to Korriban, an ancient Sith burial planet, to complete his training once more.

After collecting many Sith artifacts from Korriban, and feeling that his training was now complete, Freedon Nadd fled to Onderon, where he taught the Onderonians about Sith lore and magic, hoping to establish his own Sith Empire. Legends spread of Nadd single handedly using Sith magic to repel the Beast Masters time and again. This legend spread down through generations on Onderon and Freedon became somewhat of a god in Onderon truism for defeating the "wild beasts and aborigines" on Onderon.

Once the Jedi Knights learned of the atrocities taking place on Onderon, they soon dispatched an army to defeat Freedon Nadd. Though Nadd was defeated and killed on Onderon, his teachings were widely accepted by the Onderonian people and the Dark Side energy grew on Onderon as Nadd's bloodlines were extended during his stay. 350 years later, the Onderonian King, a descendant of Freedon Nadd, and his dark side followers created a series of revolts to finally exterminate the Beast Masters and the other outsiders and exiles of Iziz, the capital of Onderon. King Ommin called the revolts "The Freedon Nadd uprisings" in his ancestor's honor. This uprisal was short lived as Jedi Master Arca Jeth and his taskforce came and killed the Onderonian King and brought the wars to an end.

When Freedon Nadd was eventually defeated, he was able to preserve his soul inside one of the ancient Sith artifacts he had earlier discovered on Korriban. Nearly 400 years later, the exiled Jedi Student Exar Kun, who himself was slipping closely to the dark side, discovered the Sith artifacts and was controlled and manipulated by Nadd's evil spirit, which led Kun to Korriban and then to Yavin IV. Nadd was to use Exar Kun to further his own progression and slip further down the dark side and find the Sith Amulets hidden on the moon. Consequently while doing so, Exar Kun, now bearer of the amulets, became more powerful than Freedon Nadd's spirit could control. Exar Kun took complete control of the ancient Massassi race on Yavin IV and exterminated Nadd's spirit in the process.