Numerous weapons in Diablo III can not be used by all of the classes. While some weapons are restricted to a single class, such as Hand Crossbows to Demon Hunters and Fists to Monks, other items are be used by some, but not all, of the classes.
See the Class-Specific Weapons page for a full list, and expect more changes in what characters can or can not use as the game approaches release; there have been lots so far.
This category has the following 8 subcategories, out of 8 total.
Pages in category "Class-Specific Weapons"
The following 10 pages are in this category, out of 10 total.