| Hong Kong FA Cup | |
| Year: | 2004–05 |
| Country: | Hong Kong |
| Champions: | Sun Hei |
| Count: | 2 |
| Runner-Up: | Happy Valley |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
2004–05 Hong Kong FA Cup was the 31st staging of the Hong Kong FA Cup.[1] The cup was won by Sun Hei, who won 2-1 against Happy Valley in the final.
The competition started on 28 April 2005 with 9 Hong Kong First Division clubs. Although most of the matches were held in Mongkok Stadium, the final was held in Hong Kong Stadium on 22 April 2005.
The competition was officially known as Xiangxue Pharmaceutical FA Cup 2004/2005 due to sponsorship from Xiangxue Pharmaceutical Factory Co Ltd.[2]
All times are Hong Kong Time (UTC+8).
Note *: Fukien beat Xiangxue Pharmaceutical by 1-0 in the preliminary round.
------------
----
| Rank | Scorer | Team | Goals |
|---|---|---|---|
| 1 |  Oliveira | Happy Valley | 5 |
| 2 |  Wilfed Bamnjo | Kitchee | 3 |
| 3 |  Tong Kin Man | Fukien | 1 |
| = | Mihailo Jovanović | Buler Rangers | |
| = |  Fofo Agbo | Buler Rangers | |
| = | Chan Siu Ki | Kitchee | |
| = |  Keith Gumbs | Kitchee | |
| = |  Ma Shuai | Citizen | |
| = | Xu Dexin | Sunray Cave | |
| = | Lawrence Akandu | Happy Valley | |
| = | Chan Ho Man | Sun Hei | |
| = | Wong Chun Yue | Sun Hei | |
| = | Julius Akosah | Sun Hei | |
| = | Andre | Sun Hei |
Oliveira (Happy Valley) Cordeiro (Sun Hei) and Lee Wai Man (Happy Valley)