Narrators
- Kadushin, Ilyana
The Last Girl
- Kain, Luka
President of Poplar Lane
- Kana, Kathrin
Lilac Girls
- Kaplan, Liza
Pilot Episode #1
- Kaplan, Steven
Champion
- Katz, Dash
How About a Hug?
- Kayden, Spencer
The School Story
- Kaye, Judy
Y is for Yesterday
- Keating, Charles
The Murder Room
- Keating, John
The Red Fox Clan
- Keefe, Robert
The Liberation of Gabriel King
- Kellgren, Katherine
Ramses the Damned
- Kelly, Thomas Vincent
The Performance Cortex
- Kenin, Sean
Solo: A Star Wars Story Junior Novel
- Kennedy, Bryan
Dishes
- Key, Keegan-Michael
The Purloining of Prince Oleomargarine
- Khan, Khizr
An American Family
- Killea, Lannon
The Midnight Star
- Kim, Jacqueline
Colibri
- Kim, Jennifer
The Science of Breakable Things
- Klein, Emily
Ashes in the Snow (Movie Tie-In)
- Klobuchar, Amy
Nevertheless, We Persisted
- Kluger, Jeffrey
To the Moon!
- Knickerbocker, Bri
Second Fiddle
- Knowelden, Elizabeth
Our House
- Kozuch, Annie
Becoming Naomi Leon
- Kremenitzer, David
Scumble