The name Zoe comes from the Greek word zoe, meaning "life." It wasn't a popular girl's name in the U.S. until the late-1980s, but debuted inside the Social Security Administration's top-200 in 1995 and cracked the top-100 for the first time in 2000. Zoe has now been a top-50 girl's name every year since 2009 and has grown to be more popular than Zoey, which has been a top-100 girl's name since 2008. It's also the name "Happy Days" actor Henry Winkler chose for his daughter Zoe, born in 1980.
