If you have a spacious home and love big dogs—but prefer a relaxed, gentle companion over a hyperactive one—you’re in luck. Many large dog breeds are known for their calm, laid-back personalities, making them perfect for families, quiet households, or even first-time owners with enough room to accommodate a big best friend. In this guide, we’ll explore the best large but calm dog breeds that combine impressive size with gentle temperament and easygoing energy.