In the market taxonomy of Non-Metal Orthopaedic Biomaterial types, ceramics hold the leading position because alumina, zirconia-toughened alumina and hydroxyapatite provide exceptional hardness and osteoconductivity for bearing surfaces and bone void fillers. Polymers rank second: PEEK and its carbon-fiber composites are prized for modulus-matching to cortical bone, chemical inertness and radiolucency, while bioresorbable PLGA and polylactic acid systems enable temporary fixation that dissolves as healing progresses. Natural biomaterials—collagen, hyaluronic acid and chitosan—account for a smaller yet strategically important slice, functioning as carriers for growth factors or viscosupplements that mitigate joint inflammation. Composite subtypes, such as ceramic-impregnated PEEK or polymer-coated hydroxyapatite, are engineered to synergize mechanical strength with bioactivity and represent the fastest-developing category. Each type’s contribution to overall market size is dictated by its clinical performance ceiling, reimbursement coverage and surgeons’ willingness to shift from entrenched titanium platforms.