Fenrir Greyback's wand is a wand of unknown length, material, and core owned by the werewolf and Snatcher, Fenrir Greyback. It can be assumed that the wand was manufactured be Garrick Ollivander.
History
Greyback did attend Hogwarts School of Witchcraft and Wizardry, so it is probable that he purchased this wand at the age of eleven like most witches and wizards. It may have been purchased at Ollivander's Wand Shop.
Although it is only mentioned briefly, Greyback was able to cast the Unlocking Charm nonverbally with his wand, and also was able to duel with it.
In 1998, Bellatrix Lestrange overpowered Greyback and his Snatchers and took his wand during a dispute at Malfoy Manor after Harry Potter and his friends were captured. She returned his wand to him shortly before she began her interrogation and torture of Hermione Granger.
It is assumed that he was put into Azkaban after the Second Wizarding War, so it can be assumed his wand was snapped.