Third Five-Year plan may refer to:
Third Five-Year Plan (Bhutan) Third Five-Year Plan (China) Third Five-Year Plan (India) Third Five-Year Plan (Nepal) Third Five-Year Plans (Pakistan) Third Five-Year Plan (Romania) Third Five-Year Plan (South Korea) Third Five-Year Plan (Soviet Union) Third Five-Year Plan (Vietnam)
See also Five-year plan Second Five-Year Plan (disambiguation) Fourth Five-Year Plan (disambiguation)