The Cismigiu Gardens are a public park near the center of Bucharest, Romania, the oldest and largest park (17 hectares) of the city center.

Built in 1847 on land bequeathed to the city in 1845 by a Turkish water inspector, and designed by the German architect Carl F.W. Meyer, it predated the similarly-designed parks in many United States cities, such as those of Frederick Law Olmsted.
At the southeast corner of the park is the Gheorghe Lazar High School, famous in the city.