Gerardo Luigi Colonna (September 17, 1904 – November 21, 1986) was an American musician, actor, comedian, singer, songwriter and trombonist who played the zaniest of Bob Hope's sidekicks in Hope's popular radio shows and films of the 1940s and 1950s. He also voiced the March Hare in Walt Disney's 1951 animated feature film Alice in Wonderland.

During the 1930s, Colonna played with the CBS house orchestra and the Columbia Symphony Orchestra, where he developed a reputation for prankishness and tomfoolery. During his tenure at CBS, he occasionally worked under bandleader Raymond Scott, and made several recordings with Scott's famous Quintette, which typically involved Colonna mouthing nonsense syllables over Scott's band. His off-stage antics were so calamitous that CBS nearly fired him, on more than one occasion. Fred Allen (then on CBS) gave Colonna periodic guest slots, and, a decade later, he joined the John Scott Trotter band on Bing Crosby's Kraft Music Hall.