The 1973 Swiss League Cup was the second Swiss League Cup competition. It was played in summer 1973 as a pre-season tournament to the 1973âÂÂ74 Swiss football season. It was won by Grasshopper Club Zürich who defeated FC Winterthur 5âÂÂ4 on penalties after a 2âÂÂ2 draw in the final.
The League Cup was created to allow clubs from the top two tiers to compete in a tournament in advance of the league season. There was a seeding, the top eight teams from last seasons Nationalliga A were directly qualified for the round of 16. The other six teams from the top-tier and all the teams from the second-tier played a qualification round. As opposed to in the inaugural version last season, where the teams were divided into regional groups to play a round-robin, this year the 20 teams were drawn in a two-legged elimination tournament, yet only the best eight winners qualified for the round of 16. In the main competition, the matches were played in a single knockout format. In the event of a draw after 90 minutes, the match went into extra time. In the event of a draw at the end of extra time, a penalty shoot-out was foreseen.
The first legs were played on 16 June and the return legs were played on 23 June 1973.
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|colspan="3" style="background-color:#99CCCC"|11 August 1973
|colspan="3" style="background-color:#99CCCC"|14 August 1973
|colspan="3" style="background-color:#99CCCC"|8 September 1973
|- |colspan="3" style="background-color:#99CCCC"|12 September 1973
The final took place on Wednesday 10 October 1973 at Letzigrund in Zürich.
|colspan="3" style="background-color:#99CCCC"|10 October 1973
Grasshopper Club won the cup and this was the club's first League Cup title to this date.