| UAIATH CANINE |
| UBALDO'S PHL |
| UBEC HOWLING WOLVES |
| UBER ALLES PHL |
| UBERLENDER CORG |
| UC GIANT ROVER |
| UCHIHA ZEDNANREF |
| UCHIHAWARDOGS |
| UDT PAWS PH |
| U-GOLDIES |
| UHR TARAKI |
| ULTERIA PH |
| ULTHRED RAGNAR |
| ULTIMA PAW |
| ULTIMATE FURRDOME |
| ULTIMATE PLOUTOS PH |
| ULTIMATES PH |
| ULTIMEIGHT ALPHA |
| ULTIMO DOGO PH |
| ULTRA INSTINCT |
| ULTRA VIOLET PHL |
| ULTRACYBER |
| ULTRALIGHT BEAM |
| ULUWATU WAVES |
| ULVA WOLF |
| UN CANNY PAWS PH |
| UNAGI BREEDERS |
| UNA'S BULLS PHL |
| UNBREAKABLE PAWS |
| UNBREAKABLE PHL |
| UNCAGED CLUB |
| UNCLE BEN'S |
| UNCLE BOB PH |
| UNDER CITY |
| UNDERBITE BULLY |
| UNDERJAW PHL |
| UNDISPUTED ATTITUDE |
| UNDO-KAN |
| UNEXPECTED PH |
| UNIFIED PAWS |
| UNIQAHBECA PH |
| UNIQUE BULLIES |
| UNIQUETRIX |
| UNITED BULL PHL |
| UNITED DOGS PH |
| UNITED L D PH |
| UNITED RARE PH |
| UNITY BRAVE |
| UNIVERSAL PHL |
| UNKNOWN FRENCHISH |
| UNLEASED THE BEAST |
| UNLEASHED HUB |
| UNLEASHED WOLVES |
| UNNA OF WHITFIELD |
| UNO & SILVER PH |
| UNO BULLDOG'S |
| UNO CANIS LUPUS |
| UNO EZEKIEL PH |
| UNO LABRADOR PHL |
| UNO PANCHOLITO |
| UNOQUATRO |
| UNORDINARY PUPS |
| UNO'S BEST |
| UNO'S SKILOS |
| UNSAN PH |
| UNSCARED GOLD |
| UNSEASONED BULLDOG |
| UNSTOPPABULL PH |
| UNTAMED SERAFINE |
| UNTD PH |
| UPLAND BREEDER'S |
| UPLAND CYNOPHILIST |
| UPLAND PAW |
| UPS C&P |
| UPTOWN CDO |
| UPTREND |
| UR EVERYDAY |
| URAGONS PHL |
| URBAN COLLARS |
| URBAN DECA |
| URBAN LYCUZ PH |
| URBAN WOLVES |
| URBANSTAR |
| URESHI KAWAII |
| URESHII HOWL PH |
| URESHII INU PHL |
| UROCZY TIMEA PH |
| URUSEI YATSURA |
| USI PH |
| USWAG VOM HAUS |
| UTEKS TURF PH |
| UTONIUM PRIDE |
| UTOPIAN EMPIRE |
| UTOPIA'S PAWS PH |
| UTSUKUSHII DESU |
| UWJENYO |
| UYCONDEV PH |
