How did Eric Clapton get his name?

Eric Clapton was born Eric Patrick Clapton.

While playing with The Yardbirds in early 1964, Giorgio Gomelsky (The Yardbird's manager) coined Clapton the “Slowhand”. The name came from his forceful string-bending that often caused broken guitar strings. He would then replace the strings on stage while the crowd slowly clapped their hands -- or in British colloquial term, "to be given the slowhand".

After about 18 months with the Yardbirds, musical differences led Clapton to move on to John Mayall's Bluesbreakers, where his talent grew even more. It was at this part in his career that Eric's fans gave him his second and ultimate nickname - "God"!