The leu also appreciated slightly against the US dollar, trading at 3.5473 units, from 3.5492 units Friday.
The national currency opened flat at 4.473/4.475 per euro and further gained ground, hitting an early high of 4.467 per euro. The sentiment in the region improved Monday, as Greek polls showed parties supporting EU and IMF-backed austerity measures might win the upcoming elections.
On the money market, overnight rates were at 4.8%-5.3% a year, little changed on the day.