A R Animal Hospital
3085 S Archibald Ave · Ontario, CA 91761
Sun 08:00-18:00; Mon 09:00-18:00; Tue 08:00-18:00; Wed 08:00-18:00; Thu 08:00-18:00; Fri 09:00-16:00
Veterinary clinics in Ontario, CA
Ontario listings include . Call ahead for hours, and ask a vet to scan a found pet for a microchip. Nearby: 73 in Los Angeles and 62 in San Diego.
Listings
Banfield Pet Hospital (Ontario)
4120-B E 4th St · Ontario, CA 91764
Sun 07:00-18:00; Mon 07:00-18:00; Tue 07:00-18:00; Wed 07:00-18:00; Thu 07:00-18:00; Fri 07:00-18:00
Euclid Veterinary Hospital
13525 Euclid Ave · Ontario, CA 91762
Sun 09:00-18:00; Mon 09:00-18:00; Tue 09:00-18:00; Wed 09:00-18:00; Thu 09:00-18:00; Fri 09:00-18:00
Mountain Avenue Animal Hospital
1155 N Mountain Ave · Ontario, CA 91762
Sun 08:00-18:00; Mon 08:00-18:00; Tue 08:00-18:00; Wed 08:00-18:00; Thu 08:00-18:00; Fri 08:00-13:00
New Haven Animal Hospital
3450 Ontario Ranch Rd Suite #6 · Ontario, CA 91761
Sun 09:00-18:00; Mon 09:00-18:00; Tue 09:00-18:00; Wed 09:00-18:00; Thu 09:00-18:00; Fri 08:30-16:00
Ontario Spay and Neuter
750 N Archibald Ave · Ontario, CA 91764
Sun 09:30-17:00; Mon 09:30-17:00; Tue 09:30-17:00; Wed 09:30-17:00; Thu 09:30-17:00; Fri 09:30-17:00
Ontario Veterinary Hospital
121 East E Street · Ontario, CA 91764
Sun 08:00-18:00; Mon 08:00-18:00; Tue 08:00-18:00; Wed 08:00-18:00; Thu 08:00-18:00
VCA California Veterinary Specialists-Ontario
2409 S Vineyard Ave Suite O · Ontario, CA 91761
Sun 24h; Mon 24h; Tue 24h; Wed 24h; Thu 24h; Fri 24h; Sat 24h
Euclid-Walnut Pet Clinic
2521 S Euclid Ave · Ontario, CA 91761
Sun 16:00-17:30,09:30-12:00; Mon 16:00-17:30,09:30-12:00; Wed 16:00-17:30,09:30-12:00; Thu 09:30-12:00,16:00-17:30; Fri 09:30-14:00
Inland Animal Hospital
2417 S Grove Ave · Ontario, CA 91761
Sun 08:00-18:00; Mon 08:00-18:00; Tue 08:00-18:00; Wed 08:00-16:00; Thu 08:00-18:00; Fri 08:00-12:00
Ontario animal clinic
820 S Mountain Ave · Ontario, CA 91762
Nearby cities
Los Angeles San Diego Sacramento San Jose Bakersfield Long Beach San Francisco Santa Rosa Huntington Beach Fresno
Questions
How many vet clinics are in Ontario?
11 are listed on this page.
Which ones list hours?
A R Animal Hospital, Banfield Pet Hospital (Ontario), Euclid Veterinary Hospital.
Lost a pet in Ontario? Search found pets or report a pet you found.
Groomers, boarding and trainers in Ontario are on PetTrader.
Is a listing missing or wrong? Tell us.
Clinic data via SpectrumCare (spectrumcare.pet), published with the owner's approval on Oct 8, 2026. Data sources.