Grigore Alexandru Ghica or Ghika (1803 or 1807 – 24 August 1857) was a Prince of Moldavia between 14 October 1849, and June 1853, and again between 30 October 1854, and 3 June 1856.
His wife was Helena, a member of the Sturdza family and daughter of Ioan Sturdza, who had been Prince of Moldavia from 1822 to 1828.