| Country: | the United States |
| Soccer: | yes |
| Season: | 2015 |
| Division1: | Supporters' Shield |
| Champions1: | New York Red Bulls |
| Division2: | NASL |
| Champions2: | New York Cosmos |
| Division3: | USL |
| Champions3: | Rochester Rhinos |
| Division4: | NPSL |
| Champions4: | New York Cosmos B |
| Division5: | PDL |
| Champions5: |  K-W United FC |
| Domestic: | US Open Cup |
| Dchampions: | Sporting Kansas City |
| Leaguecup: | MLS Cup |
| Lchampions: | Portland Timbers |
| Wdivision1: | NWSL |
| Wchampions1: | FC Kansas City |
| Wdivision2: | W-League |
| Wdivision3: | WPSL |
| Prevseason: | 2014 |
| Nextseason: | 2016 |
| Flagicon: | yes |
The 2015 season was the 103rd season of competitive soccer in the United States.
See main article: 2015 CONCACAF Gold Cup.
See main article: 2015 CONCACAF Cup.
See main article: 2018 FIFA World Cup qualification (CONCACAF).
See main article: 2015 Toulon Tournament.
See main article: 2015 CONCACAF Men's Olympic Qualifying Championship.
See main article: 2015 CONCACAF U-20 Championship.
See main article: 2015 FIFA U-20 World Cup.
See main article: 2015 CONCACAF U-17 Championship.
See main article: 2015 FIFA U-17 World Cup.
See main article: 2015 Algarve Cup.
See main article: 2015 FIFA Women's World Cup.
See main article: 2015 Major League Soccer season.
See main article: 2015 MLS Cup Playoffs.
Note: the table below has no impact on playoff qualification and is used solely for determining host of the MLS Cup, certain CCL spots, the Supporters' Shield trophy, seeding in the 2016 Canadian Championship, and 2016 MLS draft. The conference tables are the sole determinant for teams qualifying for the playoffs.
See main article: 2015 North American Soccer League season.
See main article: 2015 USL season.
See main article: 2015 National Women's Soccer League season.
See main article: 2015 Lamar Hunt U.S. Open Cup.
See main article: 2015 Lamar Hunt U.S. Open Cup Final.
| Club | Competition | Final round |
|---|---|---|
| D.C. United | 2014–15 CONCACAF Champions League | Quarterfinals |
| New York Red Bulls | Group stage | |
| Sporting Kansas City | Group stage | |
| Portland Timbers | Group stage | |
| D.C. United | 2015–16 CONCACAF Champions League | Quarterfinals |
| LA Galaxy | Quarterfinals | |
| Real Salt Lake | Quarterfinals | |
| Seattle Sounders FC | Quarterfinals |
teams in bold are still active in the competition
See main article: 2014–15 CONCACAF Champions League championship stage.
See main article: 2015–16 CONCACAF Champions League group stage.
D.C. advanced to the quarterfinals, played in 2016
LA advanced to the quarterfinals, played in 2016
Real Salt Lake advanced to the quarterfinals, played in 2016
Seattle advanced to the quarterfinals, played in 2016
| U.S. Open Cup | Sporting Kansas City | |
| MLS Supporters' Shield | New York Red Bulls | |
| MLS Cup | Portland Timbers | |
| NASL | Spring season | New York Cosmos |
| Fall season | Ottawa Fury FC | |
| Regular season | New York Cosmos | |
| Soccer Bowl | New York Cosmos | |
| USL | Regular season | Rochester Rhinos |
| Playoffs | Rochester Rhinos | |
| NWSL Championship | FC Kansas City | |
| NWSL Shield | Seattle Reign FC | |
| W-League | Washington Spirit Reserves | |
| Women's Premier Soccer League | Chicago Red Stars Reserves |
| Premier Development League | K-W United FC | |
| National Premier Soccer League | New York Cosmos B | |
| NCAA Division I Soccer Championship | Stanford | |
| NCAA Division II Soccer Championship | Pfeiffer University | |
| NCAA Division III Soccer Championship | Amherst College | |
| NAIA Soccer Championship | Rio Grande (OH) |
| NCAA Division I Soccer Championship | Penn State | |
| NCAA Division II Soccer Championship | Grand Valley State | |
| NCAA Division III Soccer Championship | Williams College | |
| NAIA Soccer Championship | Spring Arbor (MI) |