Yes, a Pembroke Welsh Corgi can live happily in a home with other pets, and a Corgi's loyalty and humor make it a favorite in multi-pet households that understand it. The one instinct every Corgi owner must plan around is herding: this short-legged cattle dog controls movement for a living, and housemates that run are movement waiting to be controlled.
What herding looks like between housemates
A Corgi herds by circling, barking, and nipping at heels. Aimed at a cat, that produces the classic Corgi household chase, funny until the cat is stressed or the nip connects. Cats that move slowly and ignore the performance usually suffer least, and many cats learn to walk rather than run in the Corgi's presence, which removes the trigger almost entirely.
With other dogs, a Corgi often appoints itself supervisor of games it is not even in, wading in to split up wrestling pairs and bark orders at dogs three times its size. Tolerant large dogs find this amusing, but a dog that dislikes being corrected by a stranger may not. Two Corgis together commonly bond deeply, though their combined herding of the cat and of visitors' ankles needs the same management as one.
Small pets and the Corgi's chase threshold
Rabbits, guinea pigs, and birds in secure enclosures generally fare better with a Corgi than with a true terrier, because the Corgi's urge is to control rather than catch. That distinction still does not make loose small pets safe companions. A rabbit bolting across a lawn invites a heel nip and a chase, and fragile animals can be injured by either. Keep small pets housed in rooms where the Corgi's access is supervised, and never let the Corgi practice staring down a cage for entertainment.
Chickens and outdoor birds deserve special mention for rural Corgi homes, since a herding dog loose among scattering poultry can injure birds through relentless rounding-up even without biting. Fenced separation, not good intentions, is the working solution there too.
Introductions that preempt the chase
First meetings between a Corgi and a cat should happen with the Corgi on a lead and the cat free to leave, rewarding the Corgi for watching calmly and for turning away on cue. Teach and preload a strong leave-it and an incompatible behavior such as going to a mat, because the time to install those tools is before the cat ever sprints past at full speed.
With a new dog, walk together first so the Corgi's herding attention has somewhere legal to go, then share space with both dogs occupied by chews or training rather than loose excitement. End early sessions before the Corgi starts organizing the other dog's movement around the room.
Daily management for a harmonious Corgi home
Give a Corgi in a multi-pet home a daily job: training sessions, trick work, or structured play that uses its brain and its organizing instincts on purpose. A worked Corgi herds housemates noticeably less than a bored one with a full battery. Feed pets in separate places, because Corgis are enthusiastic eaters that can guard a bowl against a housemate despite their size.
Set the cat up with high shelves and a gated room so it always has territory the Corgi cannot patrol, and step in early whenever heel-nipping starts rather than laughing it through into a habit. Managed that way, the Corgi becomes the household's cheerful organizer instead of its hall monitor, and KinsLe Family Sharing keeps your Pembroke Welsh Corgi's profile shared so every family member knows the cues and rules that keep the peace.