As of the most recent 2025/2026 data, American (USA) nationals are the single largest group of visitors to the UK. In the year ending September 2025, U.S. citizens accounted for the highest number of Electronic Travel Authorisation (ETA) grants, totaling over 4.6 million. Following the U.S., European neighbors—specifically Germans and the French—make up the largest volume of visitors, especially since the expansion of the ETA scheme in early 2025. From a "visa-required" perspective, Indian nationals consistently receive the highest number of visitor visas, with over 550,000 issued annually. China remains the second-largest source of visa-holding visitors, though numbers are still recovering toward pre-pandemic levels. The high volume of American visitors is driven by strong cultural ties, the common language, and the relative strength of the US dollar against the British pound, making London and the Scottish Highlands premier destinations for transatlantic travelers seeking history and heritage.