Delano is of Norman origin, derived from the French given name Delean, which means "from Laon." It was introduced to England by the Normans after the Norman Conquest in 1066 and has since been used as a personal name and a surname. In the United States, Delano gained prominence in the late 19th century, notably through Franklin D. Roosevelt's Secretary of State, Cordell Hull, who was born with the surname Delano before his family changed it to Hull during the American Civil War. The name Delano has also been used as a given name since the mid-20th century.
The name Delano had a peak popularity with 13 births recorded in the year 1933.