Purpose: The aim of the present study was to assess the effect of platin sensitivity on long-term survival of Stage III epithelial ovarian cancer (EOC) patients. Methods: The records of all histologically confirmed Stage III EOC and PPC patients diagnosed during 1995- 2006 were reviewed. A comparison of selected characteristics was made between long-term (> 5 years) and short-term (< 3 years) survivors. Results: Among 58 Stage III patients, 20 had long-term and 18 short-term survival. The rate of platin sensitive patients in longterm survivors was significantly higher than in short-term survivors (95.0% vs 27.8%, p < 0.001). The sensitivity and specificity of platin sensitivity for long-term survival was 95% and 72.2%, respectively, and the positive and negative predictive value was 79.2% and 92.8%, respectively. No statistically significant difference between the groups was found with regard to other selected characteristics. Conclusion: The rate of platin sensitive patients was significantly higher among long-term survivors than among short-term survivors but the specificity and positive predictive value of platin sensitivity for long-term survival prediction were relatively low precluding its practical clinical use.