In patients with gastic cancer, five-year survival is poor in the locally advanced stage. Docetaxel, oxaliplatin, leucovorin, and 5-fluorouracil (FLOT) combination regimen has been shown to provide a survival advantage in the locally advanced stage. In this study, we aimed to evaluate the efficacy and tolerability of FLOT with real-life data in patients with locally advanced gastric/esophagogastric junction cancers. This retrospective study was conducted between June 2016 - March 2020 and included 106 patients' data from six centers in Turkey. Median age was 60 (33-82). Primary tumor localization was stomach in 76 (71.7%) patients. Seventy-six (71.7%) patients were operated after median 4 (1-8 cycles) cycles of preoperative FLOT. Pathological complete regression (pCR)was obtained in 10 (13.1%) of the operated patients. Median follow-up was 9.1 (1.4-45.7) months. One-year DFS was 63.2% and the two-year OS was 65.1%. Three (2.8%) patients had chemotherapy-related deaths. Due to chemotherapy-related toxicity and intoleration, 19 (17.9%) patients had dose reduction. The pCR obtained by FLOT appears higher than other regimens. This study is one of the rare mufticentric real-life data showing the efficacy and tolerability of the FLOT regimen in the perioperative treatment in GC and EJC.