- Olivia . . . and the Missing Toy
- Olivia and Lambie
- Olivia and the Fairy Princesses
- Olivia and the Giant
- Olivia and The Mush
- Olivia and The Mush: A Tale Of Two Cats
- Olivia Bean, Trivia Queen
- Olivia Brophie and Aristotle’s Lantern
- Olivia Brophie and the Pearl of Tagelus
- Olivia Brophie and the Sky Island
- Olivia Forms a Band
- Olivia Goes to Venice
- Olivia Helps with Christmas
- Olivia Saves the Circus
- Olivia the Spy
- Olivia y el gatito perdido (Θlivia 2)
- Olivia y el gran desfile (Θlivia 1)
- Olivia y El Mush
- Olivia y la estrella del pop (Θlivia 4)
- Olivia y su nueva amiga (Θlivia 3)
- Olivia's ABC
- Olivia's Adventures
- Olivia's Potty Training Book
- Olivia's Secret Wish
- Olivia's Sweet Adventure
- Olivia's Thankful Day
- Olivia's Tower
- Olivia's Wonderful Day
- Olivia, el bosque y las estrellas
- Olivia, Invisible: A Kat, Incorrigible Story
- Olivia. El genio sinvergüenza (Olivia 1)
- Olivia. El zorro furioso (Olivia 2)
- Olivia’s ABC Book
- Olka and Her Blue Parasol
- Olka and Her Blue Parasol (Yiddish and English)
- Olla pirata
- Olle och Bolle är bröder
- Olles djur
- Olles nya cykel
- Olli und die Hundefänger
- Ollie
- Ollie & Kenzo
- Ollie & Moon
- Ollie & Moon: Aloha! (Step into Reading Comic Reader)
- Ollie & Moon: Aloha! (Step into Reading Comic Reader) Read & Listen Edition
- Ollie & Moon: Fuhgeddaboudit!
- Ollie and Claire
- Ollie and His Ball
- Ollie and Lola's Woodland Adventure
- Ollie and Pookaberry in the Mushroom Forest
- Ollie and Scout
- Ollie and the comet
- Ollie and the eclipse
- Ollie and The Mouse
- Ollie and the Science of Treasure Hunting
- Ollie and the Starchaser
- Ollie Buggins, Detective?
- Ollie Finds His Happy Place
- Ollie Lost His Ball
- Ollie Meets Ethan
- Ollie Lost His Ball
- Ollie Meets Ethan
- Ollie Osprey's Bully Challenge
- Ollie Oxley and the Ghost
- Ollie the Octopus
- Ollie the Otter
- Ollie the Purple Elephant
- Ollie the Sand Artist
- Ollie's Chance
- Ollie's Holiday Havoc
- Ollie's Treasure
- Ollies julegave
- Ollie’s Adventures
- Ollis
- Olly Octopus Shares a Smile
- Olly The Terrified Toad
- Olly's Circus
- Olly's Zoo
- Olovni vojnik i lepa plesačica (Serbian Edition)
- Oltre il muro di nuvole
- Oltre L'Arcobaleno
- Oltre le nuvole
- Olu and Greta
- Olvídate del resto
- Olycksfågeln Evert
- Olympen
- Olympia y las Guardianas de la Rítmica 2 - Olympia y la fábrica de gimnastas
- Olympia y las Guardianas de la Rítmica 3 - Olympia y las auténticas deportistas
- Olympia y las Guardianas de la Rítmica 1 - Olympia y las Guardianas de la Rítmica