Mircea Vodă is a commune in Constanța County, Northern Dobruja, Romania.

At the 2011 census, Mircea Vodă had a population of 4,886; of those, 4,727 were Romanians (99.24%), 28 Roma (0.59%), 6 Turks (0.13%), and 2 others (0.04%).

[4] Settlement in the area dates back at least to the time of the Roman Empire.

In a place that the local Turks called "Acşandemir Tabiasi", a 10th-century castrum was found, which has a stone vallum.

A Slavic inscription found in this place mentions a certain "Jupan Dimitrie" and the year 943.