Waste comes in many different forms and may be categorized in a variety of ways. The types listed here are not necessarily exclusive and there may be considerable overlap so that one waste entity may fall into one to many types.
- Agricultural waste
- Animal by-products (see slaughterhouse waste)
- Biodegradable waste
- Biomedical waste
- Bulky waste
- Business waste
- Chemical waste
- Clinical waste (see Biomedical waste)
- Coffee wastewater
- Commercial waste
- Composite waste
- Construction and demolition waste (C&D waste)
- Controlled waste
- Demolition waste
- Dog waste
- Domestic waste
- Electronic waste (e-waste)
- Food waste
- Green waste
- Grey water
- Hazardous waste
- Household waste
- Human waste
- Industrial waste
- Inert waste
- Inorganic waste
- Kitchen waste
- Litter
- Marine debris
- Medical waste
- Metabolic waste. See also Feces.
- Mineral waste. See also Inorganic waste.
- Mixed waste
- Municipal solid waste
- Nuclear waste (see Radioactive waste)