The most common breed of domestic cat is the Domestic Shorthair. This isn't a single breed but rather a classification of mixed-breed cats. They exhibit a wide array of coat colors and patterns, making them visually diverse. Domestic Shorthairs are known for their amiable and adaptable nature, which contributes to their popularity among pet owners. They tend to be hardy, low-maintenance, and often have playful and affectionate personalities. Their unique genetic mix can lead to various temperaments, but they typically get along well with families and other pets, making them an excellent choice for companionship.