Louping Ill, also known as ovine encephalomyelitis, is a viral disease that primarily affects sheep. It is transmitted by ticks and can cause severe neurological symptoms leading to paralysis or even death. Although "Louping Ill" is the commonly recognized term for this illness, there are a few synonyms that can be used interchangeably. These include "ovine encephalomyelitis", "tick-borne encephalitis", and "sheep tick fever". Understanding and using these synonyms can be beneficial when searching for information or discussing the disease with others in scientific or veterinary contexts. Awareness of these alternatives expands our knowledge and facilitates effective communication regarding this significant health concern among sheep populations.