- I Allan Sealy
- Iacopo Bruno
- Iain S. Thomas
- Ian Cassel
- Ian Chappell
- Ian Denys Peek
- Ian Duhig
- Ian Fleming
- Ian Heads
- Ian K. Smith
- Ian Kelly
- Ian Kennedy Williams
- Ian Knight
- Ian McDonald
- Ian Murphy
- Ian Shepherd
- Ian Vince
- Ian W. Shaw
- Ian Westermann
- Ian Wharton
- Ian Whybrow
- Ibram X. Kendi
- Ibtisam Barakat
- Ida Noe
- Idanna Pucci
- Igor Sibaldi
- Ihwagi, Dr Festus W.
- Il Sung Na
- Ilan Stavans
- Ilana C. Myer
- Ilana Kurshan
- Ilana Rose
- Ilene Cooper
- Ilene Sue Ruhoy
- Illustrated by Yuyupanchi
- Ilona Andrews
- Ilsa Evans
- Ilse Gort
- Ilyasah Shabazz
- Iman Mersal
- Iman Mersal; Translated from the Arabic by Robyn Creswell
- Iman Oubou
- Imana Grashuis
- Imiri Sakabashira
- Imogen Binnie
- Imprint
- Ina Park
- Inbar Gavra
- Inga Wilmink
- Ingrassia, Lawrence
- Ingrid Alteneder
- Ingrid Jonach
- Ingrid Ohlsson
- Ingrid Paulson
- Ingrid Poulson
- Introduction by Will Shortz
- Ioana Hobai
- Iona Bain
- Iona Mathieson
- Ipek Konak
- Ira Rosen
- Irena Chalmers
- Irene Kelly
- Irene Latham
- Irene Marchesini
- Irene Sharp
- Irene Thornton
- Irina Reyn
- Iris Johansen
- Iris Kleinbussink
- Irshad Manji
- Irvin Khaytman
- Isa Agajanian
- Isaac Carew
- Isaac Fellman
- Isaac Wright Jr.
- Isabel Agajanian
- Isabel Ibañez
- Isabel J. Kim
- Isabel Minunni
- Isabel Tew
- Isabella Tree
- Isabelle Duffy
- Isabelle Engel
- Isabelle Steiger
- Ishmael Beah
- Ismée Williams
- Itzue W. Caviedes-Solis
- Ivan Barrera
- Ivan Castro and Jim DeFelice
- Ivan Castro,Jim DeFelice
- Ivan Estrada
- Izabella Jakubec
- Izzie Clarke
- Izzy Burton
- Izzy Paskowitz
