The United States competed in the 2019 Pan American Games in Lima, Peru from July 26 to August 11, 2019. The team included 313 men and 327 women.

The United States traditionally fielded its B or C teams in the most of sports. In basketball, the US men's team was made up of U20 Big East collegiate players, who were blown out by a senior professional Argentine team in the semi-final, but still managed to win bronze against the Dominican Republic.

United States at the 2019 Pan American Games

The United States 4x100 mixed medley relay swimming team originally won the gold medal, however it was disqualified for two alleged breaststroke kicks off the turn. USA Swimming voiced their disagreement with the decision, but they were not allowed to appeal.

United States at the 2019 Pan American Games

The United States topped the medal count with 122 gold and 293 overall medals, its best result in the 21st century.

United States at the 2019 Pan American Games

Medalists

The following U.S. competitors won medals at the games. In the by discipline sections below, medalists' names are bolded.

| style="text-align:left; width:78%; vertical-align:top;"|

| style="text-align:left; width:26%; vertical-align:top;"|

* – Indicates that the athlete competed in preliminaries but not the final.

Competitors

The following is the list of number of competitors (per gender) participating at the games per sport/discipline.

Archery

The United States qualified a full team of eight archers through the 2018 Pan American Archery Championships.

Men

Women

Mixed

Artistic swimming

The United States qualified a team of nine athletes automatically, as being the only member as part of zone three.

Athletics

The United States has qualified 90 athletes for the games.

Men

Track & road events

Field events

Combined events – Decathlon

Women

Track & road events

Field events

Combined events – Heptathlon

Badminton

The United States qualified a full team of eight badminton athletes.

Basketball

5x5

Summary

Men's tournament

Preliminary round

Semifinal

Bronze medal game

Women's tournament

Preliminary round

Semifinal

Gold medal game

3x3

Summary

Men's tournament

Preliminary round

Semifinal

Gold medal game

Women's tournament

Preliminary round

Semifinal

Gold medal game

Basque pelota

Men

Bowling

The United States qualified two women by finishing in the top two at the 2018 PABCON Female Championship.

Boxing

The United States qualified 11 boxers (six men and five women).

Men

Women

Canoeing

Slalom

The United States qualified a total of four slalom athletes (two men and two women).

Sprint

The United States qualified a total of 13 sprint athletes (seven men and six women).

Men

Women

Qualification legend: QF – Qualify to final; SF – Qualify to semifinal

Cycling

The United States has qualified 20 cyclists across all disciplines.

Road

Track

Madison

Team pursuit

Omnium

BMX

Freestyle

Racing

Diving

The United States qualified a full team of eight divers (four men and four women).

Men

Women

Equestrian

The United States qualified a full team of 12 equestrians (four per discipline).

Dressage

Eventing

Jumping

Fencing

The United States qualified a full team of 18 fencers (nine men and nine women).

Men

Women

Field hockey

The United States qualified a men's and women's team (of 16 athletes each, for a total of 32) by being ranked among the top three unqualified nations from the 2017 Men's Pan American Cup and 2017 Women's Pan American Cup respectively.

Summary

Men's tournament

Roster

Preliminary round

Quarterfinal

Semifinal

Bronze medal match

Women's tournament

Roster

Preliminary round

Quarterfinal

Semifinal

Bronze medal match

Football

Men's tournament

United States qualified but declined to enter.

Women's tournament

United States qualified but declined to enter.

Golf

The United States qualified a full team of 4 golfers by virtue of their positions in the Official World Golf Rankings and Women's World Golf Rankings.