Mastiff Dogs Available for Adoption in San Marcos, California

URGENT - The shelter is overflowing and over capacity. They desperately need adopters today! There is no more space therefore when a kennel is needed for an incoming dog and no kennels are available, a dog is forced to give up their life. Please adopt or offer to long term foster for rescue to clear kennels and save lives!

WE ARE COURTESY POSTING THIS DOG FOR THE MORENO VALLEY ANIMAL SHELTER TO HELP THEM FIND A HOME. The shelter is severely overcrowded and desperately needs help. Dogs are being turned in higher numbers than the shelter can accommodate, therefore many are losing their lives due to lack of cage space. We are helping get the word out of their immediate need. Please save this deserving pooch and clear a kennel for another dog in need today!

This beautiful dog is located in the Moreno Valley shelter. Please contact the shelter directly with questions.

Leonardo #A550856
I am a male, black brindle and white Mastiff mix
The shelter thinks I am about 8 months old.
I weigh approximately 67 lbs.

SEE MORE VIDEOS AND PHOTOS HERE: https://myalbum.com/album/UjDVDuxootLhaY/

STAFF NOTES:
* Leonardo was Pet of the Week 05/13/2026
* Leonardo knows sit
* Leonardo loves playing with toys
* Leonardo walks well on leash
* Leonardo is doing well sharing a kennel with a male Pit Bull mix

Moreno Valley Animal Shelter
14041 Elsworth Street, Moreno Valley, CA 92553
General Inquiries: animalshelter@moval.org
951-413-3790
Adoption hours:
Tuesday - Friday 10 am - 5 pm
Saturday 10:30 am - 3:30 pm
Closed Sunday-Monday & Holidays

The Mastiff, a large and powerful breed with a history dating back to ancient times, is known for its gentle and loyal nature. These dogs are devoted family companions, often forming strong bonds with their owners. Despite their imposing size, Mastiffs are typically calm and patient, making them excellent protectors and watchdogs. With a distinctive wrinkled face and a massive build, Mastiffs require proper training and socialization to thrive in various environments.