| Liechtenstein Cup | |
| Year: | 2002–03 |
| Country: | Liechtenstein |
| Champions: | FC Vaduz |
| Runner-Up: | FC Balzers |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
The 2002–03 Liechtenstein Cup was the fifty-eighth season of Liechtenstein's annual cup competition. Seven clubs competed with a total of sixteen teams for one spot in the qualifying round of the UEFA Cup. Defending champions were FC Vaduz, who have won the cup continuously since 1998.
|colspan="3" style="background-color:#99CCCC; text-align:center;"|24 September 2002|-|colspan="3" style="background-color:#99CCCC; text-align:center;"|25 September 2002|-|colspan="3" style="background-color:#99CCCC; text-align:center;"|1 October 2002|-|colspan="3" style="background-color:#99CCCC; text-align:center;"|2 October 2002|}
|colspan="3" style="background-color:#99CCCC; text-align:center;"|22 October 2002|-|colspan="3" style="background-color:#99CCCC; text-align:center;"|6 November 2002|}
|colspan="3" style="background-color:#99CCCC; text-align:center;"|8 April 2003|-|colspan="3" style="background-color:#99CCCC; text-align:center;"|21 April 2003|}