Kyr the Weaponsmith is a character in Diablo III. He can be found in Act I in the Highlands Passage, right after exiting level 2 of the Halls of Agony. Talking to him will spark the A Reputation Restored event. After completing the event, he will offer you to browse his shop, sell, or even repair.
Kyr the Weaponsmith is one of the npcs needed for the Market Research achievement.