The ministry had planned to raise RON500 million and bids amounted to RON693.6 million.
The country last sold October 2020 bonds in February at an average yield of 3.51%.
Romania's finance ministry on Monday raised a higher than planned 568.6 million lei (EUR122.03 million) selling bonds maturing in October 2020 at an average yield of 3.19%, central bank data showed.