Michael Peter Balzary (born October 16, 1962), known professionally as Flea, is an Australian-American musician and actor. He is a founding member and bassist of the rock band Red Hot Chili Peppers.

Flea was born in Melbourne, Victoria; his family moved to Rye, New York, when he was four. After his parents divorced, Flea spent his childhood in the United States and Australia, before settling in California. At high school, he befriended singer Anthony Kiedis, with whom he formed the Red Hot Chili Peppers in 1983. Flea is also a member of the supergroups Atoms for Peace, Antemasque, Pigface, and Rocket Juice & the Moon, and has played with acts including the Mars Volta, Johnny Cash, Tom Waits, Alanis Morissette, Young MC, Nirvana, What Is This?, Fear, and Jane's Addiction.

Michael Peter « Flea » Balzary est un bassiste, pianiste, trompettiste et acteur australo-américain né le 16 octobre 1962 à Melbourne, en Australie. Il est l'un des membres fondateurs du groupe de rock Red Hot Chili Peppers, avec le chanteur Anthony Kiedis. Il est surnommé Flea (puce en anglais) à cause de sa petite taille et de sa façon assez sautillante d'occuper l'espace d'une scène.

Le magazine Rolling Stone le classe second meilleur bassiste de tous les temps derrière John Entwistle.

Michael Peter Balzary, mit Künstlernamen Flea (* 16. Oktober 1962 in Melbourne, Australien), ist ein australisch-amerikanischer Bassist, Studio-Musiker und Schauspieler. Er ist Mitgründer und Bassist der Rockband Red Hot Chili Peppers.