Alexandru II or Alexandru D. Ghica (1796–1862), a member of the Ghica family, was Prince of Wallachia from April 1834 to 7 October 1842 and later caimacam (regent) from July 1856 to October 1858.
He was son of Demetriu Ghica and Eufrosine Karatza. His father was son of Grigore III Ghica. His brothers was Grigore IV Ghica and Michai Ghica, father of Elena Ghica (pen-name Dora d'Istria).