- Tabes Dorsalis
- Tay-Sachs Disease
- Temporal Arteritis
- Temporal Lobe Epilepsy
- Tethered Spinal Cord Syndrome
- Third Nerve Palsy
- Thoracic Outlet Syndrome
- Thyrotoxic Myopathy
- Tiagabine
- Todd's Paralysis
- Topiramate
- Tourette Syndrome
- Transient Global Amnesia
- Transient Ischemic Attack
- Transverse Myelitis
- Traumatic Brain Injury
- Tremors
- Trigeminal Neuralgia
- Tropical Spastic Paraparesis
- Tuberous Sclerosis
