Progressive Supranuclear Palsy (PSP) is a rare and incurable neurological disorder that affects movement and balance. Though PSP is its primary name, it may also be known by some other synonymous names like Steele-Richardson-Olszewski Syndrome, Parkinsonism with ophthalmoplegia, and a syndrome of supranuclear palsy. PSP is often misdiagnosed as Parkinson's disease due to similar symptoms. Consequently, it's essential to differentiate PSP from other movement disorders. PSP symptoms can be similar to many disorders, including Alzheimer's, dystonia, Parkinson's disease, multiple systems atrophy, corticobasal degeneration, and frontotemporal dementia. Early diagnosis of PSP is crucial in determining the right treatment plan.