Luiz Floriano Bonfá (October 17, 1922 - January 12, 2001) was a Brazilian guitarist and composer best known for the compositions he penned for the film Black Orpheus.

Bonfá was born on October 17, 1922 in Rio de Janeiro. He began teaching himself to play guitar as a child; he studied in Rio with Uruguayan classical guitarist Isaías Sávio from the age of twelve. These weekly lessons entailed a long, harsh commute by rail and on foot from his family home in the western rural outskirts of Rio de Janeiro to the teacher's home in the hills of Santa Teresa. Given Bonfá's extraordinary dedication and talent for the guitar, Sávio excused the youngster's inability to pay for his lessons.

Bonfá first gained widespread exposure in Brazil in 1947 when he was featured on Rio's Radio Nacional, then an important showcase for up-and-coming talent. He was a member of the vocal group Quitandinha Serenaders in the late 1940s. Some of his compositions were recorded and performed by Brazilian crooner Dick Farney in the 1950s. It was through Farney that Bonfá was introduced to Antonio Carlos Jobim and Vinicius de Moraes, the leading songwriting team behind the worldwide explosion of Brazilian jazz/pop music in the late 1950s and 1960s. Bonfá collaborated with these and with other prominent Brazilian musicians and artists in productions of de Moraes' anthological play Orfeu da Conceição, which several years later gave origin to Marcel Camus' legendary film Black Orpheus. In the burgeoning days of Rio de Janeiro's thriving jazz scene, it was commonplace for musicians, artists, and dramatists to collaborate in such theatrical presentations. Bonfá wrote some of the original music featured in the film, including the numbers 'Samba de Orfeu' and his most famous composition, the introspective, melancholy Manhã de Carnaval (translated to English as A Day In the Life of a Fool), which has been among the top ten standards played worldwide, according to The Guinness Book of World Records.

As a composer and performer, Bonfá was at heart an exponent of the bold, lyrical, lushly orchestrated, and emotionally charged samba-canção style that predated the arrival of João Gilberto's more refined and subdued bossa nova style. Jobim, João Donato, Dorival Caymmi, and other contemporaries were also essentially samba-canção musicians until the sudden, massive popularity of the young Gilberto's unique style of guitar playing and expressively muted vocals transformed the music of the day into the music of the future. Camus' film and Gilberto's and Jobim's collaborations with American jazzmen such as Stan Getz and Charlie Byrd did much to bring Brazilian popular music to the attention of the world, and Bonfá became a highly visible ambassador of Brazilian music in the United States beginning with the famous November 1962 Bossa Nova concert at New York's Carnegie Hall.

Bonfá lived in the USA from the early 1960s until 1975. He worked with American musicians such as Quincy Jones, George Benson, Stan Getz, and Frank Sinatra, recording several albums while in United States. Elvis Presley sang a Bonfá composition, 'Almost in Love,' in the 1968 MGM film Live a Little, Love a Little. Bonfá remained well-connected in the US after returning to Brazil, but his profile receded into relative obscurity during his final decades. His last album, 1997's Almost in Love, was a collaboration with Brazilian singer Ithamara Koorax.

Bonfá died in Rio de Janeiro on January 12, 2001 from prostate cancer complicated by ischemia. He was 78 years old.

Bonfá's major legacy continues to be his compositions from the Black Orpheus soundtrack, most notably the instantly recognizable bossa nova classic 'Manhã da Carnaval.' But Bonfá's huge discography also attests to his uniquely inventive mastery of Brazilian jazz guitar. Bonfá's guitar style was brassier and more penetrating than that of his major contemporary, João Gilberto, and Bonfá was a frequent and adept soloist whereas Gilberto plays his own suave, intricate brand of rhythm guitar almost exclusively. Bonfá often played solo guitar in a polyphonic style, harmonizing melody lines in a manner similar to that made famous by Wes Montgomery in the USA, or playing lead and rhythm parts simultaneously. As a composer and as a guitarist, Bonfá played a pivotal role in bridging the incumbent samba-canção style with the innovations of the Bossa Nova movement.