The Herding Instinct Is the Whole Question
Possibly, with active management, and the honest answer starts with why this pairing is trickier than most. A Border Collie does not meet a cat the way a companion breed does. Generations of selection taught the Collie to notice movement, fix it with a stare, stalk, chase, and control it, and a cat moving through a house presses every one of those buttons in sequence. That does not make cohabitation impossible — many Collies and cats share homes peacefully for a long time — but it means the peace is trained and supervised into existence rather than simply expected from the dog's good nature.
The Cat You Have Changes the Risk
A confident, dog-savvy cat is your greatest asset in this pairing. Such a cat walks rather than runs, holds her ground or leaves slowly by a high route, and gives the Collie nothing to chase, so the herding sequence stalls at the stare. A timid cat who sprints for cover at every surprise feeds the sequence exactly what it wants, and each successful chase rehearses the behaviour you are trying to prevent. For that cat, management is not a phase but a permanent feature of the home: gates the cat can pass and the dog cannot, high shelves and perches forming a cat highway through shared rooms, and at least one room where the dog never goes.
Introductions Built Around Control, Not Hope
Keep the animals fully separate at first, exchanging scent through bedding and feeding near the shared door so the cat's presence predicts good things for the dog. First sightings happen with the Collie on a lead, at a distance where the dog can notice the cat and still turn back to you for a reward, because a dog who cannot look away is a dog who is already too close. Train the interrupters you will rely on daily — a strong leave cue, a recall the dog answers even when aroused, and a settle on a mat — in boring contexts before you test them near the cat. Sessions stay short, end calmly, and freedom together is earned over weeks of relaxed behaviour, not granted because one afternoon went well.
Daily Management Once They Share Space
Even in settled Collie-and-cat homes, certain rules tend to stay. Supervise shared time until the dog's reliability is proven over months, and keep supervising at flashpoints such as feeding, doorways, and the cat's evening burst of running, which can wake a sleeping Collie's chase instinct instantly. Provide the dog with legitimate outlets for the same drives — herding-style training games, scent work, and proper exercise — because a fulfilled Collie has far less interest in managing the cat. Teach the dog that the cat is background, rewarded for ignoring her, rather than a puzzle it is allowed to work on whenever you leave the room.
Deciding With Your Eyes Open
Choose this pairing if you are prepared to train seriously, manage space thoughtfully, and accept that some Collies, particularly those from strong working lines with intense eye, will always need barriers between them and a cat. Ask a rescue for a Collie who has already lived with cats wherever possible, since proven history beats prediction. With several people supervising and feeding in the same house, KinsLe Family Sharing keeps the cat's dog-free zones and the Collie's training rules on both profiles where the whole household can follow them.