Alexander Emil Caiola (September 7, 1920 – November 9, 2016) was an American guitarist, composer and arranger, who spanned a variety of music genres including jazz, country, rock, and pop. He recorded over fifty albums and worked with some of the biggest names in music during the 20th century, including Elvis Presley, Ray Conniff, Ferrante & Teicher, Frank Sinatra, Percy Faith, Buddy Holly, Mitch Miller, and Tony Bennett.

During World War II Caiola played with the United States Marine Corps 5th Marine Division Band that also included Bob Crosby. Caiola served in the Battle of Iwo Jima as a stretcher bearer.

Caiola was a studio musician in the 1950s in New York City. He released some minor records under his own name in that decade. In addition, he performed under the musical direction of John Serry Sr. on an album for Dot Records in 1956 (Squeeze Play).