Start with a Calm Introduction and Controlled Distance
The fastest way to stop a dog from chasing cats is to prevent the chase from happening in the first place. This means introducing your dog to cats in a controlled setting where the dog cannot bolt after them. Begin with your dog on a leash in a room where a cat is present but separated by a physical barrier—a baby gate, closed door, or your own body between them works well. The goal is for your dog to notice the cat without reacting.
Keep your dog far enough away that they stay calm and can focus on you instead of fixating on the cat. If your dog starts pulling, pacing, or staring intently, you are too close. Move back until your dog can sit or stand quietly while the cat is visible. This distance varies by dog—some need 20 feet, others need 50. There is no rush to shrink it.
Key Takeaways
- Introduce your dog to cats at a distance where your dog stays calm and does not fixate, using a leash and physical barriers to prevent chasing.
- Reward your dog heavily for looking away from the cat and for sitting or lying down calmly in the cat's presence.
- Teach a reliable "leave it" command on objects and other dogs before expecting your dog to use it around a cat.
- Never allow your dog off-leash around a cat until they have shown calm behavior for weeks in controlled settings.
- If your dog has already chased a cat, interrupt the chase with a leash correction or recall, then return to distance training.
Reward Calm Behavior Around the Cat
Dogs repeat behaviors that result in rewards. If your dog gets excited and chases, they learn that chasing is rewarding. If your dog stays calm and gets treats, praise, or play, they learn that calmness around cats is rewarding. During your controlled introductions, mark the moment your dog looks away from the cat or sits quietly. Use a word like "yes" or a clicker, then when ready give a high-value treat—something your dog loves more than they love watching the cat move.
Repeat this dozens of times over multiple sessions. Your dog should start to anticipate that when a cat appears, looking at you or sitting down means good things happen. This is not a one-session fix. Most dogs need two to four weeks of daily or near-daily practice before they reliably ignore a cat in a controlled space.
Teach "Leave It" on Objects First
Before you ask your dog to ignore a cat, teach the "leave it" command using objects. Place a treat on the floor, cover it with your foot, and wait for your dog to stop trying to get it. The moment they pull away or look up at you, say "leave it," then reward them with a different, better treat from your hand. Practice this until your dog reliably steps back from treats, toys, and food on the ground when you say the command.
Once your dog understands "leave it" with objects, you can use it as a backup during cat introductions. If your dog starts to lunge or fixate, say "leave it" and guide them away with the leash. The command should already feel familiar, so your dog is more likely to respond. Do not rely on this command alone—distance and prevention are still your primary tools.
Interrupt Chasing and Return to Distance Training
If your dog does chase a cat despite your precautions, interrupt the chase when ready. A leash correction, a sharp "no," or a recall command can stop the behavior in the moment. Do not chase your dog or make the situation exciting—stay calm and matter-of-fact. Once you have your dog back, put them on the leash and increase the distance between them and the cat. You have learned that your dog is not yet ready for that level of closeness.
Return to the distance where your dog was calm and start over. This setback does not erase your progress, but it does mean you need more time at greater distances before moving closer. Some dogs need weeks longer after a chase incident.
Manage Your Home Until Training Is Solid
Do not leave your dog and cat unsupervised until your dog has shown calm behavior around the cat for at least two to three weeks in controlled settings. Even then, start with short periods—five to ten minutes—while you are in the room. Use baby gates to separate them when you cannot watch, and crate your dog when you leave the house. A cat that feels safe is less likely to run, and a dog that does not get to practice chasing is less likely to develop the habit.
Some dogs have a very high prey drive and will never be fully trustworthy around cats, even with training. If your dog has a history of hunting small animals or has already injured a cat, management (permanent separation) may be safer than training alone.
Use Desensitization for Dogs with High Prey Drive
If your dog becomes extremely aroused by the sight of a cat—lunging, barking, whining—you may need to move more slowly through desensitization. Start with your dog in a separate room while the cat is in another. Let your dog smell the cat's bedding or a blanket the cat has slept on. Reward calm sniffing. Over days or weeks, gradually move the cat's scent closer, then move to visual introductions at very large distances, then slowly reduce that distance.
This process can take months for dogs with intense prey drive, but it works for many. The key is never rushing to the next step. If your dog regresses, go back to the previous step and stay there longer.
Avoid Common Training Mistakes
Do not punish your dog for chasing after the fact. If you find your dog near the cat five minutes after a chase, punishing them now teaches them to hide the behavior, not to stop it. Punishment also creates anxiety around cats, which can make the problem worse. Instead, focus on preventing chases from happening and rewarding calm behavior.
Do not assume your dog will "get used to" the cat on their own. Some dogs do, but many will practice chasing every chance they get and become better at it. Active training and management are necessary. Also avoid letting your dog practice the chase behavior at all—every successful chase reinforces the habit and makes retraining harder.
Frequently Asked Questions
How long does it take to train a dog not to chase cats?
Most dogs show reliable calm behavior around cats after two to four weeks of daily practice in controlled settings. Dogs with high prey drive or a history of chasing may need two to three months. The timeline depends on your dog's age, temperament, and how much practice you do.
Can I use a shock collar or spray bottle to stop my dog from chasing?
Shock collars and spray bottles can interrupt a chase in the moment, but they do not teach your dog what to do instead. They also create fear and anxiety, which can make the problem worse over time. Leash control, distance, and reward-based training are more effective and safer for your dog's behavior and your relationship with them.
What if my dog has already caught and killed a cat?
A dog that has successfully killed a cat has learned that chasing and catching are rewarding. Retraining is much harder and takes much longer—often several months or more. Permanent separation is the safest option. If you do attempt retraining, work with a professional trainer who has experience with prey drive.
Can I train an adult dog not to chase cats, or is it only for puppies?
Adult dogs can learn not to chase cats, though puppies often learn faster because they have fewer established habits. An adult dog that has never chased a cat before can usually learn in a few weeks. An adult dog with years of chasing experience will need longer and more consistent practice.
Should I get a cat if I have a dog that chases them?
If your dog has a strong prey drive or has chased cats before, adding a cat to your home is risky. Even with training, some dogs cannot be trusted around cats. If you already have both, focus on management and training. If you are considering getting a cat, choose a dog breed and individual dog known for low prey drive and calm temperament around small animals.