Dog versus cat
Why does my dog chase the cat?
The chase can look like a cartoon, but it is not harmless. A cat that is chased every day lives under stress, and a dog that has practiced the chase for months can move from fun to a grab in an instant.
Last reviewed September 29, 2026 · by the Best Dog University Team
The answer
Movement triggers the chase, and a running cat rewards it every time.
Many dogs are wired to chase things that move quickly, and a cat bolting across the room is the perfect trigger. Terriers, sighthounds and many hunting breeds have strong prey drive. Herding breeds like Australian shepherds, border collies and heelers may chase to control movement, circling and nipping rather than grabbing. Plenty of other dogs simply find the chase exciting and learn that the cat is the best game in the house.
Conflict is a different story. A dog that stares, stiffens or growls when the cat walks near its bowl, bed or person is guarding, not playing, and it may go after the cat to make it leave rather than to chase it. The response to that is closer to resource guarding than to prey drive. Watch a few chases closely, or film them, before you decide which dog you have, because the plan for a playful chaser and the plan for a stalking, silent one are not the same.
- Prey drive: fixed stare, stalking, silent chase
- Herding: circling, blocking and nipping
- Play: loose body, bouncy, stops when the cat stops
- Conflict: stiff, growling near a bowl, bed or person
The risk
A dog that grabs, shakes or corners a cat is a safety emergency, not a nuisance.
Some dogs that chase never want to catch. Others will grab and shake if they get the chance, and the gap between those two can close fast as a habit builds. Warning signs include a hard, fixed stare at the cat, stalking, trembling with focus, whining at a closed door and ignoring you completely when the cat moves. A dog that has already grabbed or injured a cat must never have unsupervised access to it.
The cat pays a price too. A cat that is chased daily may stop using its litter box, hide for hours or stop eating in the open. The cat's stress is part of the problem you are solving. Talk to your vet about a cat that has stopped eating or using its box, and give it a dog-free room right away while the training plan gets going.
- A fixed stare and stalking
- Whining at the door the cat is behind
- Ignoring you completely when the cat moves
- Any grab, pin or injury
- A cat that hides or stops using its box
What to do
Manage first, then teach calm with the dog on a leash and the cat safe.
Start with management. Give the cat routes the dog cannot follow: cat trees, shelves, baby gates with a cat door, and a room of its own with food, water and a litter box. Keep the dog on a leash or house line whenever the cat is loose, and crate or separate the dog when you cannot supervise. That stops the chase being practiced while you train.
Then teach the dog a calm job around the cat. Build a solid place bed and leave it away from the cat first. When those are good, bring the dog in on a leash with the cat safe up high or behind a gate, and pay the dog for looking at the cat and then back at you. Build the time and closeness slowly over weeks.
Give the cat high perches, gates and a dog-free room with its own litter box
Keep the dog on a leash or house line whenever the cat is loose
Separate them completely when you cannot watch
Teach place and leave it away from the cat
Work the dog on a leash with the cat safe behind a gate or up high
Pay the dog for glancing at the cat and back at you
Move closer only when the dog stays relaxed
The Houston factor
Townhomes with nowhere to run, neighborhood cats on the fence and a new kitten at the shelter.
Many Houston homes are townhomes and apartments where a cat has little room to get away, and the stairs become the chase route. In the suburbs, outdoor and neighborhood cats walk the fence line and cross the lawn, and a dog that chases those rehearses the habit it then brings indoors. Shelters in the area, such as BARC and Harris County Pets, adopt out cats and kittens, and families who bring one home to an adult dog need the plan above from day one.
In summer, both animals are indoors most of the day, so the gates, perches and quiet cat room matter even more. Storm season adds one more job: plan where the cat and the dog will each be during a power cut or an evacuation, because a crated dog and a carried cat in one small space is not the moment to test the training.
At Best Dog University
Lessons for the chaser that never made contact, Platinum for the dog that has grabbed.
A dog that chases but has never caught or hurt the cat usually does well with in-home lessons at $220, because the cat, the stairs and the gates are all at your house, and our trainer sets up the management, the place bed and the leash work with you. A dog that has grabbed, pinned or injured a cat, or that fixes on the cat with real intensity, needs a consultation and usually the three-week Platinum program at $3,750, which includes behavior modification and unlimited private lessons. We do not promise every dog can live loose with a cat; we tell you honestly when management is the long-term answer.
The programs
Programs for the dog that chases the cat.
In-home lessons for the chaser, Platinum after a consultation for a dog that has grabbed or fixes on the cat.
Asked and answered
Questions people ask about this.
Will my dog grow out of chasing the cat?
Rarely on its own, because the chase is rewarding and gets practiced. Some puppies calm down with age if the cat stands its ground and the family manages things, but most dogs need clear rules, management and training to stop.
Is my dog playing or trying to hurt the cat?
A loose, bouncy body and a dog that stops when the cat stops is more likely play. A fixed stare, stalking, silent chasing, whining at doors and ignoring you are warning signs of prey drive. If you are unsure, keep them apart and get a trainer to watch.
Can a high prey drive dog live with a cat?
Some can, with careful management and training, and some cannot live loose with a cat safely. It depends on the dog's intensity and history. A trainer can help you decide, and management with gates and separate spaces may be the right long-term answer.
Should I let the cat put the dog in its place?
Not as a plan. Some cats do teach a dog to back off, but it can also make a dog more aroused or end with the cat hurt or the dog's eye scratched. Manage the space, keep the dog on a leash and teach calm instead.
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