No, Albert Einstein and Sir Isaac Newton did not meet. While they are both regarded as two of the most influential scientists in history, there is no record of them ever meeting or having any direct interaction.
However, in terms of their lifetimes, there is a significant gap between their respective eras. Sir Isaac Newton lived from 1643 to 1727, while Albert Einstein was born in 1879 and passed away in 1955. Therefore, Newton had already been deceased for over a century before Einstein was born.
In terms of their geographical locations, Newton spent a significant portion of his life in England. He was born in Woolsthorpe-by-Colsterworth, Lincolnshire, and later lived in Cambridge, where he held various academic positions at the University of Cambridge. Einstein, on the other hand, was born in Ulm, Germany, and lived in various places throughout his life, including Switzerland, Austria, Belgium, and the United States. So, they lived in different countries and during different time periods, making it highly unlikely for them to have met.