| Gender: | Women's |
| Year: | 2018 |
| Dates: | May 11–27, 2018 |
| Teams: | 27 |
| Finalsfield: | Kenneth P. LaValle Stadium |
| Finalscity: | Stony Brook, NY |
| Champions: | James Madison |
| Titlecount: | 1st |
| Runnerup: | Boston College |
| Gamecount: | 2nd |
| Semifinal1: | Maryland |
| Finalfourcount1: | 26th |
| Semifinal2: | North Carolina |
| Finalfourcount2: | 10th |
| Coach: | Shelley Klaes-Bawcombe |
| Coachcount: | 1st |
| Mop: | Haley Warden |
| Mopteam: | James Madison |
The 2018 NCAA Division I Women's Lacrosse Championship is the 37th annual single-elimination tournament to determine the national champion of Division I NCAA women's college lacrosse. The semifinal and championship rounds will be played at Kenneth P. LaValle Stadium in Stony Brook, New York from May 25–27, 2018.[1] All other rounds were played at campus sites, usually at the home field of the higher-seeded team, from May 11–20.
All NCAA Division I women's lacrosse programs were eligible for this championship, and a total of 27 teams were invited to participate. 14 teams qualified automatically by winning their conference tournaments while the remaining 13 teams qualified at-large based on their regular season records.
| Seed | School | Conference | Berth Type | RPI[2] | Record | |
|---|---|---|---|---|---|---|
| 1 | Maryland | Big Ten | Automatic | 2 | 18-1 | |
| 2 | North Carolina | ACC | Automatic | 1 | 15-3 | |
| 3 | James Madison | CAA | Automatic | 4 | 18-1 | |
| 4 | Boston College | ACC | At-large | 3 | 19-1 | |
| 5 | Stony Brook | America East | Automatic | 6 | 19-0 | |
| 6 | Florida | Big East | Automatic | 5 | 16-3 | |
| 7 | Towson | CAA | At-large | 7 | 15-4 | |
| 8 | Loyola (MD) | Patriot | At-large | 10 | 15-4 | |
| Colorado | Pac-12 | At-large | 12 | 13-5 | ||
| Denver | Big East | At-large | 16 | 12-6 | ||
| Fairfield | MAAC | Automatic | 50 | 13-6 | ||
| Georgetown | Big East | At-large | 17 | 12-6 | ||
| High Point | Big South | Automatic | 18 | 17-2 | ||
| Jacksonville | Atlantic Sun | Automatic | 43 | 16-3 | ||
| Johns Hopkins | Big Ten | At-large | 22 | 10-8 | ||
| Mercer | SoCon | Automatic | 85 | 9-10 | ||
| Navy | Patriot | Automatic | 8 | 16-3 | ||
| Northwestern | Big Ten | At-large | 9 | 13-5 | ||
| Penn | Ivy | At-large | 11 | 13-4 | ||
| Penn State | Big Ten | At-large | 21 | 10-9 | ||
| Princeton | Ivy | Automatic | 13 | 12-5 | ||
| Richmond | Atlantic 10 | Automatic | 23 | 16-3 | ||
| Stanford | Pac-12 | Automatic | 14 | 15-4 | ||
| Syracuse | ACC | At-large | 19 | 9-9 | ||
| Virginia | ACC | At-large | 20 | 9-9 | ||
| Virginia Tech | ACC | At-large | 15 | 13-6 | ||
| Wagner | Northeast | Automatic | 58 | 13-5 |