Tony Award za najbolji scenario za mjuzikl (Tony Award for Best Book of a Musical) dodeljuje se libretisti, odnosno libretistkinji, koji pišu deo muzičke predstave koji se izgovara, a ne peva. Ranije se ova nagrada zvala TA za najboljeg autora mjuzikla. Da bi mogli da budu nominovani za ovu nagradu mjuzikli moraju da imaju radnju i ne smeju biti ponovljene postavke. Mjuzikl može biti nominovan za ovu nagradu i ukoliko je ponovljena postavka samo pod uslovom da je napisan novi scenario.
- 1980 Evita - Tim Rice
- 1981 Woman of the Year - Peter Stone
- 1982 Dreamgirls - Tom Eyen
- 1983 Cats - T. S. Eliot
- 1984 La Cage aux Folles - Harvey Fierstein
- 1985 Big River - William Hauptman
- 1986 The Mystery of Edwin Drood - Rupert Holmes
- 1987 Les Misérables - Alain Boubil i Claude-Michel Schonberg
- 1988 Into the Woods - James Lapine
- The Gospel at Colonus - Lee Breuer
- The Phantom of the Opera - Richard Stilgoe i Andrew Lloyd Webber
- Romance/Romance - Barry Harman
- 1989 Nagrada nije dodeljena
- 1990 City of Angels - Larry Gelbart
- 1991 The Secret Garden - Marsha Norman
- Miss Saigon - Alain Boublil i Claude-Michel Schonberg
- Once on This Island - Lynn Ahrens
- The Will Rogers Follies - Peter Stone
- 1992 Falsettos - William Finn i James Lapine
- Crazy for You - Ken Ludwig
- Five Guys Named Moe - Clarke Peters
- Jelly's Last Jam - George C. Wolfe
- 1993 Kiss of the Spider Woman - Terrence McNally
- Anna Karenina - Peter Kellogg
- Blood Brothers - Willy Russell
- The Who's Tommy - Pete Townshend i Des McAnuff
- 1994 Passion - James Lapine
- Beauty and the Beast - Linda Woolverton
- Cyrano: The Musical - Koen van Kijk
- A Grand Night for Singing - Walter Bobbie
- 1995 Sunset Boulevard - Don Black i Christopher Hampton
- 1996 Rent - Jonathan Larson
- Big - John Weidman
- Bring in 'Da Noise, Bring in 'Da Funk - Reg E Gaines
- Chronicle of a Death Foretold - Graciela Daniele, Jim Lewis, i Michael John LaChiusa
- 1997 Titanic - Peter Stone
- Jekyll & Hyde - Leslie Bricusse
- The Life - David Newman, Ira Gasman i Cy Coleman
- Steel Pier - David Thompson
- 1998 Ragtime - Terrance McNally
- 1999 Parade - Alfred Uhry
- Footloose - Dean Pitchford i Walter Bobbie
- It Ain't Nothin But the Blues - Charles Bevel, Lita Gaithers, Randal Myler, Ron Taylor i Dan Wheetman
- Marlene - Pam Gems
- 2000 James Joyce's The Dead - Richard Nelson
- Contact - John Weidman
- Marie Christine - Michael John LaChiusa
- The Wild Party - Michael John LaChiusa i George C. Wolfe
- 2001 The Producers - Mel Brooks i Thomas Meehan
- A Class Act - Linda Kline i Lonny Price
- The Full Monty - Terrence McNally
- Jane Eyre - John Caird
- 2002 Urinetown - Greg Kotis
- Mamma Mia! - Catherine Johnson
- Sweet Smell of Success - John Guare
- Thoroughly Modern Millie - Richard Morris i Dick Scanlan
- 2003 Hairspray - Mark O'Donnell i Thomas Meehan
- Amour - Didier Van Cauwelaert, Jeremy Sams (adaptacija)
- Flower Drum Song - David Henry Hwang
- A Year With Frog and Toad - Willie Reale
- 2004 Avenue Q - Jeff Whitty
- 2005 The 25th Annual Putnam County Spelling Bee - Rachel Sheinkin
- Dirty Rotten Scoundrels - Jeffrey Lane
- The Light in the Piazza - Craig Lucas
- Monty Python's Spamalot - Eric Idle
- 2006 The Drowsy Chaperone - Bob Martin i Don McKellar
- The Wedding Singer - Chad Beguelin i Tim Herlihy
- Jersey Boys - Marshall Brickman & Rick Elice
- The Color Purple - Marsha Norman
- 2007 Spring Awakening - Steven Sater
- Curtains - Rupert Holmes i Peter Stone
- Grey Gardens - Doug Wright
- Legally Blonde: The Musical - Heather Hach
Spring Awakening - Steven Sater