The name Miley is a girl's name of American origin. Miley is ranked #923 on our popularity charts and is often added to lists like American Names for Girls and discussed in our forums with posts like "Girls Makeover - Two Middles".
From the experts:
One-time overnight success name, thanks to Hannah Montana actress and singer Miley Cyrus, Miley has now fallen over 700 ranks since 2008. How are the mighty fallen! For Miley Cyrus, Miley was a childhood nickname (because she was so smiley); Destiny is her real name. Miley is a good lesson in avoiding trendy names. Popular opinion of the source can sour leaving a fresh name looking dated.