To determine the relationship between herpes simplex virus 1, 2 and neurological disorders, sixty samples from patients with neurological diseases were collected (40 patients with Multiple sclerosis and 20 patients with Parkinson’s disease) all of whom attended both the Neurological science Hospital as well as the Neuropathology consultation Department in Baghdad Hospital In Iraq. The samples were collected in the time frame between November 2017 and April 2018. The ages of the patients that were investigated were between (17-76) years and compared to a control group consisting of 25 samples collected from apparently healthy individuals. All the studied groups were subjected to the measurement of anti-HSV 1, 2 IgG antibodies by the means of an Enzyme Linked Immunosorbent Assay (ELISA) technique followed by the genetic detection of the virus using a quantitative polymerase chain reaction (qPCR). The results of the current study revealed that there was a none-significant difference (p>0.05)in the concentration of HSV- 1, 2IgG antibody in the sera of the patients with multiple sclerosis and Parkinson’s disease compared to the healthy control group. The study also showed that 17.39% of the Multiple sclerosis sample’s tested using qPCR resulted in the positive detection of HSV-1 DNA and while only 9.3% of the same samples tested positive for the presence of HSV-2 DNA.As for the samples from the Parkinson’s patients and the control samples both tested negative for any amplification of viral DNA for both HSV one and two. Statistical analysis proved these results to be statistically in significant