Lupus may refer to:
the following skin disorders:
- Systemic lupus erythematosus (SLE), commonly known as "Lupus". When the term 'lupus' is used without modification, it usually means SLE, especially in a medical context.
- Drug-induced lupus erythematosus, a drug-induced form of SLE
- Lupus nephritis, an inflammation of the kidneys caused by SLE, when anti-DNA antibodies, which the body makes, precipitate in the kidneys.
- Lupus pernio, a feature of sarcoidosis.
- Lupus vulgaris, a feature of cutaneous tuberculosis