The 2015 Big Ten Women's Lacrosse Tournament was held April 30 to May 3 at High Point Solutions Stadium in Piscataway, New Jersey. The winner of the tournament received the Big Ten Conference's automatic bid to the 2015 NCAA Division I Women's Lacrosse Championship. All six conference teams competed in the inaugural event. The tournament format is single elimination. The seeds were based upon the teams' regular season conference record.
| Seed | School | Conference | Overall |
|---|---|---|---|
| 1 | Maryland ‡* | 5–0 | 21–1 |
| 2 | Penn State | 4–1 | 16–5 |
| 3 | Northwestern | 3–2 | 14–7 |
| 4 | Ohio State | 2–3 | 13–8 |
| 5 | Rutgers | 1–4 | 2–16 |
| 6 | Michigan | 0–5 | 5–12 |
| ‡ Big Ten regular season champions. * National champions | |||
| Session | Game | Time* | Matchup | Score | Television |
|---|---|---|---|---|---|
| Quarterfinals – Thursday, April 30 | |||||
| 1 | 1 | 3:30 pm | #3 Northwestern vs. #6 Michigan | 13–9 | BTN Plus |
| 2 | 6:00 pm | #4 Ohio State vs. #5 Rutgers | 17–7 | BTN Plus | |
| Semifinals – Friday, May 1 | |||||
| 1 | 1 | 5:30 pm | #2 Penn State vs. #3 Northwestern | 13–10 | Big Ten Network |
| 2 | 8:00 pm | #1 Maryland vs. #4 Ohio State | 11–10 | Big Ten Network | |
| Championship – Sunday, May 3 | |||||
| 2 | 3 | 12:00pm | #2 Penn State vs. #4 Ohio State | 13–11 | ESPNU |
| *Game times in EST. # – Denote tournament seeding. | |||||
High Point Solutions Stadium – Piscataway, New Jersey
| Quarterfinals April 30 | Semifinals Game May 1 | Championship May 3 | ||||||||||||
| 2 | Penn State | 13 | ||||||||||||
| 3 | Northwestern | 13 | 3 | Northwestern | 10 | |||||||||
| 6 | Michigan | 9 | 2 | Penn State | 13 | |||||||||
| 4 | Ohio State | 11 | ||||||||||||
| 1 | Maryland | 10 | ||||||||||||
| 4 | Ohio State | 17 | 4 | Ohio State | 11 | |||||||||
| 5 | Rutgers | 7 | ||||||||||||