Hong Kong League Cup 2003–04 is the 4th staging of the Hong Kong League Cup.
The competition was sponsored by Sunray Cave Limited.
The 10 teams from Hong Kong First Division League were divided into 2 groups. The top 2 teams in the groups entered the semi-finals.
Group stage All times are Hong Kong Time (UTC+8).
Group A TeamPtsPldWDLGFGAGDHappy Valley1043101129Buler Rangers842201165Nancheng Real Estate7421168-2South China3410336-3Fire Services04004211-9
Group B TeamPtsPldWDLGFGAGDSun Hei94301936Sunray Cave74211844Xiangxue Pharmaceutical5412145-1Kitchee3403146-2Fukien2402218-7
Knockout stage
Bracket
Hong Kong League Cup 2003–04 WinnerSun HeiSecond Title
Semi-finals
Final
Individual Awards Top Scorers: Roger Batoum of Happy Valley, Cornelius Udebuluzor of Buler Rangers, Musa Shannon of Nancheng Real Estate (4 Goals) Best Defensive Player: Lau Chi Keung of Sun Hei HKFA website 日之泉聯賽盃：四比二力克愉園 晨曦成功衛冕
Trivia There was a pre-match before this League Cup final where La Salle College played against West Island School in the All Hong Kong Schools Jing Ying Football Tournament 2003-04 final. West Island School captured the champion by winning 1-0.
References www.rsssf.com Hongkong 2003/04 HKFA Website 聯賽盃回顧(四) (in chinese)