Parkinson’s disease (PD) is the most common neurodegenerative disease and is associated with a loss of dopaminergic neurons in the substantia nigra. Currently available treatments provide only symptomatic relief and there is no proper diagnosis tool to detect early stages of PD. Recently, nanomedicines and nanoformulation strategies have been widely adopted for the diagnosis and treatment of PD owing to their ability to improve treatment efficacy and provide unique diagnostic functions. Furthermore, advances in nanomedicine limit the potential side effects associated with conventional therapy and provide targeted drug delivery. The objective of this review is to discuss nanoformulation strategies used for the treatment as well as the diagnosis of PD.