The Georgian era is a period of British history which takes its name from, and is normally defined as spanning the reigns of, the first four Hanoverian kings of Great Britain (later the United Kingdom): George I, George II, George III and George IV. The era covers the period from 1714 to 1830, with the sub-period of the Regency defined by the Regency of George IV as Prince of Wales during the illness of his father George III. Often the short reign of the fifth and final Hanoverian king King William IV (1830 to 1837) is also included. The last Hanoverian monarch of the UK was William's niece Queen Victoria who is the namesake of the following historical era, the Victorian, which is usually defined as occurring from the start of her reign, when William died, and continuing until her death.

The term "Georgian" is typically used in the contexts of social history and architecture.

Georgian society and its preoccupations were well portrayed in the novels of writers such as Henry Fielding, Mary Shelley and Jane Austen, characterised by the architecture of Robert Adam, John Nash and James Wyatt and the emergence of the Gothic Revival style, which hearkened back to a supposed golden age of building design.