<h4>Objective</h4>This study employs bibliometric analysis to systematically examine global research trends and map the intellectual landscape of α-synuclein (α-syn) in Parkinson's disease (PD) from 2015 to 2024.<h4>Methods</h4>On January 14, 2025, bibliographic data were extracted from the web of science core collection (WOSCC) and PubMed. Here, SNCA is linked to Parkinson disease.