The 1913–14 National Challenge Cup was the inaugural edition of the national knock-out soccer competition in the United States that would eventually become the modern-day Lamar Hunt U.S. Open Cup.

Brooklyn Field Club won the title.

The competition ran alongside the 1914 American Cup, an older, similar competition organized by the American Football Association (AFA).

At the time, two different organizations vied for recognition as the official national association for American soccer, the predominantly north-eastern AFA and the organizers of the Challenge Cup, the newly named United States Football Association.

[3] Home teams listed on top of bracket (*) replay after tied match w/o walkover/forfeit victory awarded