| 2017 season | |||
|---|---|---|---|
 | |||
| General manager | Dave Kasper | ||
| Head coach | Ben Olsen | ||
| Stadium | RFK Stadium | ||
| MLS | Conference: 11th Overall: 21st | ||
| MLS Cup Playoffs | Did not qualify | ||
| U.S. Open Cup | Fifth round | ||
| Atlantic Cup | Runners-up | ||
| Top goalscorer | League: Luciano Acosta (5) All: Luciano Acosta (5) | ||
| Highest home attendance | 41,418 (Oct 22 vs. RB New York) | ||
| Lowest home attendance | 5,286 (Jun 13 vs. Christos) | ||
| Average home league attendance | 17,904 | ||
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The 2017 D.C. United season was D.C. United's 22nd season of existence, and their 22nd in Major League Soccer, the top flight of American soccer.
An array of injuries to key players such as Steve Birnbaum and Patrick Mullins greatly affected D.C. United's form, as the team's scoring output and defensive performance suffered. United finished at the bottom of the Eastern Conference, and second-bottom of the overall league table. United failed to qualify for the MLS Cup Playoffs for the first time since 2013, and for only the second time in the last six seasons. United also had a short spell in the 2017 U.S. Open Cup, where they were bounced in the fifth round proper by New England Revolution.
The season was also United's final season at Robert F. Kennedy Memorial Stadium, ending a 22-year run for the club leasing the stadium. RFK Stadium was the final original stadium to be used by one of the charter franchises in MLS. It was at the time, the longest tenure for an MLS team in a specific stadium. Starting the following season, United moved into Audi Field, a soccer-specific stadium situated in the Buzzard Point neighborhood of Washington, D.C.