Visits by Americans to the UK are up 23% year-over-year, according to TripAdvisor research.
The statistics show American travellers are not only the largest inbound market to the UK, but are showing the largest increase in interest year-over-year.
Canadian visitors show the second largest increase, up 21%.
The most popular place to visit in the UK is London, followed by Edinburgh, Yorkshire, the Scottish Highlands and Cornwall.
TripAdvisor for Business VP marketing Alison Copus said: "In the year of the post-Olympics afterglow and a new royal baby to celebrate, it is clear that the UK’s place on the world stage is as strong as ever.
"Overall, interest in UK destinations is on the rise, and not just to the traditional holiday hotspots on the coast or in the capital – the UK’s inland countryside is thriving too, with Yorkshire and the Scottish Highlands both holding a place in the top five destinations."
But the TripAdvisor figures go against statistics from VisitBritain which shows that although the US remains the number one overseas market for the UK, visitor numbers are falling.
