Francesca Flavia Mormanni, professionally known as F. F. Mormanni or Francesca Mormanni, is an Italian-American novelist, screenwriter, musician, producer, actress, and fashion designer.

Mormanni is the author of novels Double Crossed and Mind the Gap. She has written several acclaimed screenplays — both adaptations of her novels and original stories — with narratives spanning science fiction, fantasy, thriller, drama, horror, and dark comedy. 

As a musician, Mormanni has performed with renowned ensembles such as The Juilliard Orchestra, The Juilliard Opera, New York String Orchestra, Brevard Symphony Orchestra, Vero Beach Opera, and Orlando Philharmonic Orchestra at venues including Carnegie Hall and Lincoln Center. She studied Flute and Harp Performance at The Juilliard School and Juilliard Pre-College, and is also an accomplished pianist, coloratura soprano, and piccolo player. She is a composer and songwriter for Warner Chappell Music.

Mormanni is the Founder and Executive Producer of Mormanni Media, and the Founder of Mormanni Capital, LLC.

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She is an avid enthusiast of motorsports and international travel.