| Koo Ja-wook | |
| Team: | Samsung Lions |
| Number: | 5 |
| Position: | Outfielder |
| Birth Date: | 12 February 1993 |
| Birth Place: | Daegu, South Korea |
| Bats: | Left |
| Throws: | Right |
| Debutleague: | KBO |
| Debutdate: | March 28 |
| Debutyear: | 2015 |
| Debutteam: | Samsung Lions |
| Statyear: | June 6, 2024 |
| Statleague: | KBO |
| Stat1label: | Batting average |
| Stat1value: | .314 |
| Stat2label: | Home runs |
| Stat2value: | 143 |
| Stat3label: | Runs batted in |
| Stat3value: | 710 |
| Teams: |
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| Highlights: |
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| Hangul: | 구자욱 |
| Rr: | Gu Jauk |
| Mr: | Ku Chauk |
Koo Ja-wook (born February 12, 1993) is a South Korean professional baseball outfielder currently playing for the Samsung Lions of the KBO League.[1]
In 2015, he beat Kim Ha-sung and Cho Moo-geun to win the Rookie of the Year award.[2]