Relations between goblins and wizards have been strained for centuries from misunderstandings on both sides, sometimes leading to violence in the form of goblin rebellions and riots. Students at Hogwarts study the Goblin Wars fought between wizards and goblins in their History of Magic class. Along with house-elves, goblins seem to occupy positions as second-class citizens in the Wizarding world. Goblins consider wizards to be arrogant.The goblins remain a neutral force during the Second Wizarding War, siding with neither Lord Voldemort or the opposition to him, claiming that it is "a wizard's war". In some cases, a state of friendship exists between certain wizards and goblins (particularly Bill Weasley, who works as a Curse Breaker for Gringotts Bank), and there have even been some instances of goblin-wizard interbreeding (Professor Flitwick has distant goblin ancestry, which likely accounts for his small size).
Named Goblin characters:
Gornuk, an associate of Griphook
Ragnuk the First: Supposedly the creator of the sword of Godric Gryffindor