Lime has several meanings:
- Calcium oxide - a chemical compound
- Calcium hydroxide (also slaked lime) - a chemical compound
- Lime (Citrus aurantifolia) - a Citrus tree with a green fruit similar to a lemon.
- Australian lime - six small Citrus species native to Australia
- Kaffir lime - a Southeast Asian Citrus with very pungent leaves.
- Tilia - a genus of trees, also known as Linden.
- Lime (band) - a 1980s disco band
- Lime (anime) - a term from anime and manga, a derivative of lemon (anime)