Tieren Nie-Tan was a Jedi Knight of the male persuasion who served the Jedi Order as the Galactic Republic neared its end, during its final years.
Having been trained by the Jedi Order to wield the Force, the Force-sensitive Tieren Nie-Tan had achieved the rank of Jedi Knight before the year 33 BBY. In that year, the majority of the Jedi High Council were called away from Coruscant due to a series of uprisings that had begun spreading throughout the Yinchorri system. At that time, Nie-Tan was stationed at the Jedi Temple on Coruscant, and he was present when a group of Yinchorri managed to infiltrate the Tower of First Knowledge in an attempt to murder the Jedi Initiates residing there. Nie-Tan joined the other Jedi at the Temple in a forceful attack against the invading party. Although the invaders were successfully driven back, Jedi Nie-Tan perished in the fighting; the only other Jedi to die was Jude Rozess.
Randy Stradley created Jedi Tieren Nie-Tan for the second issue of the Jedi Council: Acts of War comic book series. To this day, Jedi Nie-Tan has only been depicted after the battle, lying dead in the arms of a female Human and a Rodian Jedi. He appears to be a member of an orange-skinned species, with floppy ears and a snout resembling a canine's.