Dog Name U

Ubu

Udall

Uffizi

UFO

Uganda

Uggams

Ula

Ulani

Ulgy

Ullman

Ulrich

Ultima

Ultimate

Ultra

Ultrasonic

Ulysses

Utrillo

Uzi

Umberto

Umbrella

Ump

Umpire

Una

Uncle

Unconscious

Undercover

Underdog

Underfoot

Underground

Underwood

Undo

Unger

Unice

Unicorn

Union

Unique

Unite

Unity

Untouchables

Upbeat

Update

Uphill

Upi

Upkeep

Uproar

Upshot

Upstart

Uptight

Uranus

Urban

Urbana

Urchin

Urena

Urey

Uri

Uriah

Uris

Urmi

Ursa

Ursella

Ursi

Ursula

Usher

Usherette

Ushi

Ustinov

Usurper

Utah

Utoo

Utopia