Blight, also known as Venomous Bite, may refer to:
- The ability used by Cúchulainn from Final Fantasy XII.
- The enemy ability and summon ability used by Cúchulainn from Final Fantasy XII: Revenant Wings.
- The ability from Final Fantasy XIV.
- The Scion ability used by Cuchulainn from Final Fantasy Tactics A2: Grimoire of the Rift.
- The ability from Pictlogica Final Fantasy.
Blight refers to a specific symptom affecting plants in response to infection by a pathogenic organism. It is a rapid and complete chlorosis, browning, then death of plant tissues such as leaves, branches, twigs, or floral organs.