Woojin (우진) may refer to:
- Artists
- Kim Woo Jin, a soloist singer-songwriter and former member of Stray Kids
- People
- Park Woo Jin of AB6IX, former member of Wanna One and former Produce 101 Season 2 contestant
- Lee Woo Jin of GHOST9, former member of TEEN TEEN and former Produce X 101 contestant
- Choi Woo Jin of TIOT, former contestant on Boys Planet
- Shin Woojin, former member of G.U.Y
- Choi Woojin, former Mr. Trot 2 contestant
- Lee Woojin, former member of MY.st and former BOYS24 contestant
- Woojin, former member of TARGET
- Yeom Woojin, former The Idol Band : Boy's Battle and Top 10 Student contestant
- Woojin, former member of TheEastLight., former Produce 101 Season 2 contestant
- Ko Woo Jin, former member of THE MAN BLK