Introduction: The non-motor symptoms (NMSs) in Parkinson's disease (PD) patients have greater effects on their quality of life compared to the motor symptoms; however, they are under-recognized. The aim: The study aims to evaluate the prevalence and severity of NMS in newly diagnosed PD patients in Tanta University hospitals. Patients and methods: The study included 41 newly diagnosed PD patients. All patients were screened for NMS by the non-motor symptoms questionnaire (NMS-Quest). According to the NMS-Quest response, patients were further evaluated by Sialorrhea Clinical Scale for PD (SCS-PD), Scales for Outcomes in Parkinson's disease for Autonomic symptoms (SCOPA-AUT), Rome III Questionnaire, Nocturnal voiding and Sleep-Interruptions Questionnaire, Brief Pain Inventory, Montreal Cognitive Assessment (MoCA), Scale for Evaluation of Neuropsychiatric Disorders in Parkinson's Disease (SEND-PD), Pittsburgh Sleep Quality Index (PSQI), and questionnaires based upon the International Restless Legs Study Group criteria. The results: The study included 22 female and 19 male patients; the duration of illness was 2.7 ± 2.08 years. Constipation was the most common symptoms as it was present in 73.1% in the studied patients; 61% suffered loss of sexual interest. 47.5% of patients had depressive symptoms. Sleep disturbance was present in 36.6% of the patients. Anxiety was reported by 30% of the patients. Conclusion: All newly diagnosed PD patients suffered one or more NMSs; constipation was the most frequent followed by sexual dysfunction, depressive symptoms, and sleep disturbance, while pain, sialorrhea, and restless leg were the least reported.