Abstract : Non-Hodgkin lymphoma (NHL) is the most common hematological malignancy. In the past few decades, the incidence of Non-Hodgkin lymphomas was raised in the world. The aim of this retrospective clinical study was to evaluate the special clinical parameters of patients with NHL in head and neck and to assess the incidence in different age groups. The retrospective study presents 121 files of patients immunohistologically diagnosed with NHL of head and neck. The patient files were obtained from the archives and the clinical parameters such as age, sex and site of the lesions were evaluated. A total number of 121 patients, 74(61.2%) men and 47(38.8%) women with a non-Hodgkin lymphoma in the head and neck area were evaluated and analyzed from 2010 to 2018. The higher incidence of NHL of head and neck was presented in age group of less than 40 years 45(37.2%) cases. In regarding to lesions site, the neck was the more incidence than other parts 27(22.3%) cases. The more incidence of high grading lesion was in age group less than 40 years 19(15.7%) cases. In this study, the NHL of head and neck comprised 32.9% of all hematological malignancies and the vast majority cases were in the age group ˃ 40 years and rarely occurred in the oral cavity and the mixed large and small B cell lymphoma subtype was the most common form. The survical lymph nodes were the most common site followed by tonsils