Puccalo is the term used for the highest level of human oral mouth whistling. The term is derived from combining the words "pucker" and "piccolo" and it refers to a level of skill and talent in human whistling which produces notes and tones that are so clear and precise, they remind the listener of someone playing a wind instrument. Playing the puccalo is distinguished from casual whistling, and places the instrument at the same prestige as other musical instruments.
Puccalo was a term first coined by the late jazz musician Ron McCroby, one of the leading puccaloists of the 20th century.
Like other highly skilled musicians, puccalo players have mastered their instrument, allowing them to perform most genres of music - from folk, jazz, rock, blues, ethnic, to western and eastern classical music.