I believe that we will win!

"I believe that we will win!" is a chant commonly performed at sporting events. Originating in the Naval Academy Preparatory School, it became a tradition among fans and students of the United States Naval Academy. In 2014, the chant gained national recognition as a rallying call among United States men's national soccer team (USMNT) fans for the 2014 FIFA World Cup, becoming an unofficial motto of the team.

The chant is a call and response interaction between two parties. It begins with one call of "I believe", followed by "I believe that" and "I believe that we", before concluding with repeated shouts of "I believe that we will win!"

In 1998, Naval Academy Preparatory School (NAPS) student Jay Rodriguez was assigned to create a chant to be used by his platoon and came up with "I believe that we will win!". It was first used during a NAPS basketball game against the United States Military Academy Preparatory School in Newport, Rhode Island. A year later, now a Naval Academy student, Rodriguez taught it to his classmate, cheerleader Corey Strong, who began using it during the 1999 Army–Navy Game; in the fourth quarter of the 19–9 Navy victory, Strong led the 4,000-student Brigade of Midshipmen in the chant. In 2003, the Midshipmen team showed marked improvement over their 3–30 record in the last three years; during a game that year against the No. 25-ranked Air Force Falcons at FedExField, Navy students began reciting the chant as the Midshipmen won 28–25. In preparation for the Army–Navy Game later that year, Navy sold T-shirts with the phrase written on them. The chant is currently performed by midshipmen in the closing stages of a victory.

The chant eventually spread to other college sports, with fans of the Utah State Aggies men's basketball team adopting its usage in 2009. The SDSU Show of San Diego State University and Harvard Crimson students also performed it during games. Fans of various soccer clubs have also recited it, including the New York Red Bulls of Major League Soccer and French team FC Nantes. During the 2016 Ryder Cup, "U-S-A!" chants by American fans interspersed with calls of "I believe that we will win!"

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