Look up mellitus in Wiktionary, the free dictionary.
Mellitus was the third Archbishop of Canterbury in the early 7th century AD.
Mellitus may also refer to:
- Diabetes mellitus, a metabolic disease
- Pachybrachis mellitus, a leaf-beetle species of Pachybrachis
- Neoporus mellitus, a predaceous water beetle in the family Dytiscidae
- Pyrophorus mellitus, a click beetle species of Pyrophorus
- Eumellitiphis mellitus, a bee mite in the family Laelapidae