- Claudette Colvin and Phillip Hoose
- Claudia Christian
- Claudia Mills
- Claudia Mills, illustrated by Rob Shepperson
- Claudia Romo Edelman
- Claudia Tan
- Claudine Boulstridge
- Claudio Antonelli
- Clay Byars
- Clemens G. Arvay
- Clement C. Moore
- Clement Hurd
- Clementine Derodit
- Cleo Wade
- Cliff Sims
- Clifton Crais
- Clint Edwards
- Clint McElroy
- Clint Pulver
- Clinton Walker
- Clive Barker
- Clive Cussler
- Clive Gifford
- Clive James
- Clive Lambert
- Clive Murphy
- Clive Thompson
- Cloe Madanes
- Coby Kozlowski
- Codi Shewan
- Cody C. Lewis
- Cody Cook-Parrott
- Cody James King
- Col Buchanan
- Cola Bilkuei
- Colby Wilkens
- Cole Gibsen
- Cole Kazdin
- Coleen Nolan
- Colette
- Colette Bryce
- Colin Adams
- Colin Bisset
- Colin Bryar
- Colin Channer
- Colin Dexter
- Colin Fassnidge
- Colin Hunter
- Colin Kahl
- Colin Lancaster
- Colin MacKinnon
- Colin Tipping
- Colin Woodard
- Colleen AF Venable
- Colleen Codekas
- Colleen Kessler
- Colleen Kong-Savage
- Colleen O’Grady
- Collin Stewart
- Colm Tóibín
- Colonel Moutarde
- Colter Jackson
- Con Coughlin
- Confucius
- Connor Beaton
- Connor Gaydos
- Connor White
- Conor Corderoy
- Conor McGlauflin
- Conor Woodman
- Conrad Walters
- Constance Dierickx
- Constance Gillam
- Cook, Robin
- Cookie O’Gorman
- Cora Carmack
- Cora Harrison
- Corabel Shofner
- Coral Byers
- Corey Egbert
- Corey Finkle
- Corey J. White
- Corey Mead
- Corey Parker
- Corey Pein
- Corey Robin
- Corinna Vallianatos
- Corinne Sweet
- Corkie Bolton
- Cormac McCarthy
- Cornelia Li
- Corook and Olivia Barton
- Cory Booker
- Cory Doctorow
- Cory Reid
- Cosmina Popa
- Cosmo Landesman
- Costantia Manoli
- Courtenay Hartford
- Courtney Andersen
