There is some controversy about assessment of nodal stage in staging systems used for gastric cancers. The goal of the this study is to assess the influence of metastatic lymph node ratio (MLNR) and number of resected lymph nodes on survival in patients with gastric cancer who were perfomed R0 resection due to gastric adenocarcinoma. Data from 125 patients with gastric carcinoma who underwent R0 resection due to from 2009 to 2015 investigated retrospectively. Cut-off values used for MLNR were 0.1-25%, 26-50% and >50%. Sex, age, size and location of tumor , differentiation, tumor invasion, lymphovascular invasion, number of metastatic lymph nodes and MLNR were analyzed as prognostic factors. Five-year survival rate was 45.6%. Five-year survival rates among patients with pN0, pN1, pN2, pN3aand pN3b disease were 79%, 41%, 34%, 25% and 17%, respectively (p=0.0001). Five-year survival rates among patients in MLNR0, MLNR1, MLNR2 and MLNR3 categories were 79%, 42%, 28% and 5%, respectively (p=0.0001). Due to our results, tumor size, differentiation degree, depth of invasion, presence of lymphovascular invasion, number of metastatic lymph nodes, MLNR and disease stage were found to be associated with survival (p=0.0001). According to results of multivariate analysis, differentiation degree, presence of lymphovascular invasion and MLNR were found as independent risk factors, while number of metastatic lymph nodes was not an independent risk factor regarding survival. MLNR is an independent risk factor in gastric adenocarcinoma patients undergoing R0 resection regarding survival.