Modelu is a commune in Călărași County, Muntenia, Romania. It is composed of four villages: Modelu, Radu Negru, Stoenești, and Tonea.

Historical population
YearPop.±%
20029,804
20119,839+0.4%
202110,052+2.2%
Source: Census data

At the 2021 census, the commune had a population of 10,052. Since 2004, the mayor has been Gheorghe Dobre of the National Liberal Party.