Grigore C. Crăiniceanu (9 July 1852, Bucharest – 1 October 1935) was a Romanian military officer.

From November 1909 to December 1910, he served as War Minister in the cabinet of Ion I. C.

Sent into reserve in 1913, he was recalled to active duty upon Romania's entry into World War I, commanding the Second Army during the Battle of Transylvania, from August 25 to September 25, 1916.

His son, Lieutenant colonel Constantin Crăiniceanu [ro], was allegedly recruited by the German secret service while he was the Romanian military attaché in Vienna (1914–1916) and was executed for treason in April 1917 after he had attempted desertion to the Germans, as part of a plot masterminded by Colonel Alexandru D. Sturdza [ro], the son of the former prime minister Dimitrie Sturdza.

[4] Crăiniceanu founded two magazines, Revista Armatei and Cercul publicațiilor militare.