Louis Koo Tin Lok (Çince: 古天樂), (d. 21 Ekim 1970, Hong Kong), Çinli oyuncu. İngiliz adı Louis Koo, Çince adı Koo Tin Lok'tur. Takma adı Koo Jai'dir.

oyuncu

Assassins
Run Papa Run (2008)
Flash Point (2007)
Triangle (2007)
Protégé (2007)
Happy Birthday (2007)
Rob-B-Hood (2006)
Dragon Tiger Gate(Voice) (2006)
Election 2 (aka Triad Election (US) ) (2006)
Election (2005)
Throw Down (2004)
Love on the Rocks (2004)
Fantasia (2004)
Lost in Time (2003)
Naked Ambition (2003)
Good Times, Bed Times (2003)
Why Me, Sweetie?! (2003)
Love for All Seasons (2003)
Mighty Baby (2002)
Women From Mars (2002)
Dry Wood, Fierce Fire (2002)
Fat Choi Spirit (2002)
The Lion Roars (2002)
La Brassiere (2001)
The Legend of Zu (2001)
Born Wild (2001)
Conman in Tokyo (2000)
Troublesome Night 7 (2000)
For Bad Boys Only (2000)
Century of the Dragon (1999)
Bullets Over Summer (1999)
Troublesome Night 5 (1999)
Super Car Criminals (1999)
Troublesome Night 6 (1999)
Troublesome Night 4 (1998)
The Suspect (1998)
Troublesome Night 3 (1998)
Troublesome Night 2 (1997)
Troublesome Night (1997)
Sealed with a Kiss (1997)
Street of Fury (1996)
On Fire (1996)
Those Were The Days (1996)
Let's Go Slam Dunk (1994)