There's a persistent argument online that the goblins from Harry Potter are anti-semitic caricatures, and most critics focus in on the fact that Rowling allegedly presents them with hooked noses:
While goblins are often depicted in fantasy fiction as cruel, greedy, and generally malicious creatures, author J.K. Rowling depicted them in her Harry Potter series as a secretive cabal of hook-nosed bankers, who maintain a contentious relationship with the wizarding world, who view them with deep suspicion.
And a little further down:
Stewart is correct in his condemnation of the creatures, and in his assertion that Rowling could have reimagined goblins as whatever she wanted them to be - creating a hook-nosed race of bankers was not a clever interpretation of folklore, but simply another stain in the pages of Harry Potter.
Or from an NBC News opinion piece:
But critics have been pointing out for years that the hook-nosed, greedy goblin bankers who run Gringotts Wizarding Bank look a lot like the hook-nosed, greedy Jewish caricatures that have been a hallmark of antisemitic propaganda from the Middle Ages to Der Stürmer.
With that quote referencing an opinion piece from The Jewish Chronicle, although it references a theme park promotional shot and nothing about the actual writing:
It is not often that I am stopped in my tracks. But the press photography from the new Gringotts wing of Warner Bros’ Harry Potter Studio tour positively shrieked with antisemitic tropes; the long-nosed goblin, his natty suit, clawed fingers caressing a pile of gold coins. When I positioned a Gringotts shot alongside a series of cartoons from Nazi Germany’s Der Stürmer, it did not seem out of place.
I've already done a quick text search of the books, and the term "hook" does bring back several mentions of "hook-nose", but all of them refer to Snape. But that doesn't rule out that the noses are described with some other hook-like fashion. Other search terms I've used have returned too many results to be useful, and I also can't rule out that Rowling described the noses somewhere other than the books, like in an interview.