Biological material may refer to:
- Biological tissue, or just tissue
- Biomass, living or dead biological matter, often plants grown as fuel
- Biomass (ecology), the total mass of living biological matter
- Biomaterials
- Biocompatible materials and bioapplicable materials
- Biomolecule, a chemical compound that naturally occurs in living organisms
- Biotic material, from living things
- Bio-based material, a processed biotic material
- Cellular component, material and substances of which cells (and thus living organisms) are composed
- Organic material (or organic matter), derived from living things or containing carbon
- Viable material, capable of living, developing, or germinating under favorable conditions. (see: viability)
- Body fluids
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