Mercearia do Cão is an online pet store based in Cascais, Portugal, serving owners of a wide range of companion animals. Its catalogue covers dogs, cats, parrots and other birds, rabbits and small rodents, turtles and other reptiles, and fish. The store offers species-specific food, including complete meals, treats, seeds, hay, and hand-rearing food, alongside practical supplies for everyday care.

For dogs and cats, the range includes food and treats, grooming and household products, beds, toys, training items, and equipment for walks and travel. Bird products include cages, carriers, perches, toys, feeders, hygiene supplies, and accessories. Rabbit and rodent owners can find cages, hutches, carriers, enrichment products, and care supplies, while reptile and aquarium sections feature food and maintenance products. A veterinary and pharmacy department also lists health-focused categories, such as supplements, parasite treatments, and products for specific conditions. Mercearia do Cão additionally highlights selected products and offers an opportunities section. Customers can shop online or contact the business by phone or email.