Johan Bernhard Georg Carstensen (31 August 1812 – 4 January 1857) was a Danish army officer and one of the developers of Tivoli Gardens.

[1] Between 1843 and 1848, Carstensen was active in the development of Tivoli Gardens and Casino Theatre (Copenhagen) after which he joined the First Schleswig War.

Following the disagreement with others in the Tivoli Gardens management, Carstensen travelled to the Danish West Indies and joined the army there.

[2] In 1855, Carstensen returned to Copenhagen and attempted to construct an establishment to rival Tivoli Gardens, the Alhambra in Frederiksberg.

Georg's sister, Annette Adelaide Christine Carstensen, was the mother of Sir Robert Hay-Drummond-Hay, whose second wife Grace Marguerite Hay Drummond-Hay was the first woman to travel airborne from Europe to the US as well as the first woman to circumnavigate the globe in the air.