"Her future is very bright. All I can add is to enjoy the ride."
Time Magazine tweeted the news directly to Ko, this week in California for the Swinging Skirts LPGA Classic, who retweeted it.
Ko has collected an impressive number of golf accolades over the past few years.
After winning the LPGA's CN Canadian Women's Open in 2012 and 2013 as an amateur, she had been the top-ranked woman amateur golfer in the world for 130 weeks when she announced she was turning professional last year.
She was hailed after becoming the youngest person ever to win a professional golf tour event, and the youngest person ever to win an LPGA Tour event.
It's also not the first time Ko has graced the pages of Time - last year, she featured alongside fellow Kiwi Lorde in a list of the year's most influential teens.
Others on Time's Most Influential People, released overnight, include Russian leader Vladimir Putin, NSA whistleblower Edward Snowden and pop star Beyonce, who also appeared on the cover.