royal park [royal park] BrE NAmE noun any of the nine parks in London, England, originally owned by the king or queen and now managed by the government. They include the large central London parks of Green Park, ↑Regent's Park, ↑St James's Park, ↑Kensington Gardens and ↑Hyde Park, as well as ↑Richmond Great Park, ↑Hampton Court Park, Bushey Park and Greenwich Park.