In the UK its "Patience". To most Americans the card game is known as "Solitaire". Yet to Card Game Officialdom, the game is called "Klondike". The name Klondike coming from the Klondike region of Canada's Yukon territoty, which was well known for the Klondike Gold Rush during the late 1890's.
The earliest published rules to the game appeared in the 1907 edition of Hoyle's Games under the name "Seven-Card Klondike".
Regardless of what you call it...give it a play!