Demand for the issue was more than five times higher the offered amount, at RON1.62 billion.
The issue will be reopened Tuesday for a non-competitive tender in which the ministry plans to raise an additional RON45 million.
Romania's finance ministry on Monday raised a planned 300 million lei (EUR66.96 million) selling bonds maturing in July 2017, at an average yield of 0.75%, central bank data showed.