Ji-hoo Is A Boys Name With Korean Roots. With A Timeless Meaning Of "wisdom" Or "intellect," Its No Surprise That Its Been A Favorite Of South Korean Parents For Decades. Dont Let That Fool You, Though—this Name Is Every Bit As Trendy As When It First Started To Climb The Charts In 1970, Thanks To Various Actors And K-pop Idols Bearing The Name, Including Wanna Ones Park Ji-hoon.