Major General Franklin Cummings Sibert (January 3, 1891 – June 24, 1980) was a United States Army officer.

He attended the United States Military Academy at West Point, New York and graduated on June 12, 1912.

[1] Several of his fellow graduates, like Sibert himself, would attain general officer rank, such as Gilbert R. Cook, John S. Wood, Wade H. Haislip, Stephen J. Chamberlin, Walton Walker, Harry J. Malony, William H. Wilbur, Robert McGowan Littlejohn, Archibald Vincent Arnold, Millard Harmon, Raymond O. Barton, Albert E. Brown, and Walter M. Robertson.

In 1939, Sibert spent some time in Michigan as a commanding officer of Fort Wayne or Camp Custer.

He was highly regarded by Lieutenant General Walter Krueger, who in July 1944 radioed his superior, General Douglas MacArthur, about Sibert: During a visit [to] the Wakde−Maffin Bay area a few days ago, I was impressed with Sibert's skilful handling of his troops.

After his retirement, he and his wife lived in Fort Walton Beach, Florida, until his death on June 24, 1980.