骨器或骨角器，是指人类以动物的骨头，间也有用角和牙（如鹿角和象牙）研磨而制的器具。该器具可用来渔猎甚至装饰。于考古学中，骨角器的出现，常被视为人类文明的进步的重要指标，其理由是磨制骨角需要更多锯、切、削、磨、钻的技能。 通常为动物的骨头，例如针、锥、鱼标和刀凿等，于旧石器时代出现，新石器时代大量使用，铁器时代因为铁器的使用而逐渐消失，不过事实上以人或动物骨头制成的器具在人类进入铁器时代后依然部份地存在，像西藏某些喇嘛所使用的人骨法器即为一例（有一种用头盖骨制成的）。

In archaeology, a bone tool is a tool created from bone. A bone tool can conceivably be created from almost any bone, and in a variety of methods.

Bone tools have been documented from the advent of Homo sapiens and are also known from Homo neanderthalensis contexts or even earlier. Bone has been used for making tools by virtually all hunter-gatherer societies, even when other materials were readily available. Any part of the skeleton can potentially be utilized; however, antlers and long bones provide some of the best working material. Long bone fragments can be shaped, by scraping against an abrasive stone, into such items as arrow and spear points, needles, awls, and fish hooks.