Background: In high income countries, the prevalence of oesophageal and gastric cancer is expected to rise, with a growing number of patients being diagnosed later in life. Current research suggests that good long-term outcomes can be achieved in the elderly, but worse perioperative mortality and postoperative morbidity in comparison to younger patients. However, these studies include data from patients dating back to the 1970’s, since which there has been an improvement in clinical outcomes, due to improved patient selection and perioperative care. Additionally, no cohort studies with Australian data have previously been published. Methods: This is a prospective cohort study of 154 patients who underwent oesophageal or gastric resection at an experienced tertiary centre between 1/1/2009 and 31/12/2020. Relevant demographic, staging, perioperative and survival data was recorded and compared between patients aged above and below 75. Results: Overall survival of patients aged 75 and above (mean survival 40.530 months) was similar to younger patients (mean survival 43.157 months, P=0.730 log rank test). Patients in the older group were more likely to develop surgical (40.0% vs. 23.4%, P=0.065) and medical (60.0% vs. 31.5%, P=0.004) complications. However, rates of in-hospital mortality (6.7% vs. 3.2%, P=0.382) and length of hospital stay (22.4 days vs. 20.0 days, P=0.363) were similar. Interestingly, rates of neoadjuvant or adjuvant therapy in addition to surgery were also lower in the elderly (46.7% vs. 68.5%, P=0.025) Conclusion: The resection of oesophageal and gastric cancer in the elderly is possible with increased post-operative morbidity, but no significant difference in post-operative mortality or survival.