- Ug!
- UG: Boy Genius of the Stone Age and His Search for Soft Trousers
- Uleyli- The Princess & Pirate (A Chapter Book): Based on the true story of Florida's Pocahontas
- Ulfberhts svärd
- Ulka, la chica de la era de hielo
- Un jour
- Un misterio en Tucumán
- Un nemico per amico
- Un sacchetto di biglie
- Un temps de chien
- Un voisin étrange
- Under the Ashes
- Under Thors værge og andre fortællinger
- Undercover Explorer
- Underground To Canada
- Unge Kvinder
- Unleashed
- Until Niagara Falls
- Until the Last Spike: The Journal of Sean Sullivan
- Uppdraget i London
- Urashima Taro and Other Japanese Children's Favorite Stories
- Using Noah to Backtrack History for Children