# 2003 NAIA Division II men's basketball tournament

The 2003 NAIA Division II men's basketball tournament was the tournament held by the NAIA to determine the national champion of men's college basketball among its Division II members in the United States and Canada for the 2002–03 basketball season.
Top-seeded Northwestern (IA) defeated unseeded Bethany (KS) in the championship game, 77–57, to claim the Red Raiders' second NAIA national title and second in three years.
The tournament was played at Keeter Gymnasium on the campus of the College of the Ozarks in Point Lookout, Missouri.

## Qualification

The tournament field remained fixed at thirty-two teams, and the top sixteen teams were seeded.
The tournament continued to utilize a single-elimination format.

## Bracket

| First round | First round | First round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | | Semifinals | Semifinals | Semifinals | | National championship | National championship | National championship |
| 1 | Northwestern (IA) | 99 | | | | | | | | | | | | | | |
| | Presentation (SD) | 72 | | | | | | | | | | | | | | |
| | Presentation (SD) | 72 | 1 | Northwestern (IA) | 89* | | | | | | | | | | | |
| | | | 16 | William Jewell | 86 | | | | | | | | | | | |
| | Flagler | 72 | 16 | William Jewell | 86 | | | | | | | | | | | |
| 16 | William Jewell | 87 | | | | | | | | | | | | | | |
| 16 | William Jewell | 87 | | | | 1 | Northwestern (IA) | 74 | | | | | | | | |
| | | | | | | 9 | Huntington (IN) | 60 | | | | | | | | |
| 9 | Huntington (IN) | 71 | | | | | | | 9 | Huntington (IN) | 60 | | | | | | | |
| | Holy Family | 68 | | | | | | | | | | | | | | |
| | Holy Family | 68 | 9 | Huntington (IN) | 80 | | | | | | | | | | | |
| | | | 8 | Cedarville | 70 | | | | | | | | | | | |
| | Saint Ambrose | 84 | 8 | Cedarville | 70 | | | | | | | | | | | |
| 8 | Cedarville | 94 | | | | | | | | | | | | | | |
| 8 | Cedarville | 94 | | | | | | | | 1 | Northwestern (IA) | 104 | | | | |
| | | | | | | | | | | 12 | Cornerstone | 92 | | | | |
| 5 | Saint Vincent | 76 | | | | | | | | | | | 12 | Cornerstone | 92 | | | |
| | Bethel (KS) | 62 | | | | | | | | | | | | | | |
| | Bethel (KS) | 62 | 5 | Saint Vincent | 54 | | | | | | | | | | | |
| | | | 12 | Cornerstone | 92 | | | | | | | | | | | |
| | UVA Wise | 73 | 12 | Cornerstone | 92 | | | | | | | | | | | |
| 12 | Cornerstone | 78 | | | | | | | | | | | | | | |
| 12 | Cornerstone | 78 | | | | 12 | Cornerstone | 84 | | | | | | | | |
| | | | | | | 4 | Bellevue (NE) | 75 | | | | | | | | |
| 13 | Cascade | 79 | | | | | | | 4 | Bellevue (NE) | 75 | | | | | | | |
| | Black Hills State | 73 | | | | | | | | | | | | | | |
| | Black Hills State | 73 | 13 | Cascade | 68 | | | | | | | | | | | |
| | | | 4 | Bellevue (NE) | 76 | | | | | | | | | | | |
| | Cal State Hayward | 44 | 4 | Bellevue (NE) | 76 | | | | | | | | | | | |
| 4 | Bellevue (NE) | 76 | | | | | | | | | | | | | | |
| 4 | Bellevue (NE) | 76 | | | | | | | | | | | | 1 | Northwestern (IA) | 77 |
| | | | | | | | | | | | | | | | Bethany (KS) | 57 |
| 3 | Jamestown | 96 | | | | | | | | | | | | | | | Bethany (KS) | 57 |
| | Indiana Southeast | 65 | | | | | | | | | | | | | | |
| | Indiana Southeast | 65 | 3 | Jamestown | 74 | | | | | | | | | | | |
| | | | | Albertson | 65 | | | | | | | | | | | |
| | Albertson | 53 | | Albertson | 65 | | | | | | | | | | | |
| 14 | Taylor | 44 | | | | | | | | | | | | | | |
| 14 | Taylor | 44 | | | | 3 | Jamestown | 71 | | | | | | | | |
| | | | | | | 11 | Warner Southern | 76 | | | | | | | | |
| 11 | Warner Southern | 75 | | | | | | | 11 | Warner Southern | 76 | | | | | | | |
| | Rio Grande | 58 | | | | | | | | | | | | | | |
| | Rio Grande | 58 | 11 | Warner Southern | 99 | | | | | | | | | | | |
| | | | | College of the Ozarks | 93 | | | | | | | | | | | |
| | College of the Ozarks | 72 | | College of the Ozarks | 93 | | | | | | | | | | | |
| 6 | Siena Heights | 69 | | | | | | | | | | | | | | |
| 6 | Siena Heights | 69 | | | | | | | | 11 | Warner Southern | 69 | | | | |
| | | | | | | | | | | | Bethany (KS) | 74 | | | | |
| 7 | MidAmerica Nazarene | 61 | | | | | | | | | | | | Bethany (KS) | 74 | | | |
| | Bethany (KS) | 72 | | | | | | | | | | | | | | |
| | Bethany (KS) | 72 | | Bethany (KS) | 89 | | | | | | | | | | | |
| | | | 10 | Oregon Tech | 83 | | | | | | | | | | | |
| | Husson | 67 | 10 | Oregon Tech | 83 | | | | | | | | | | | |
| 10 | Oregon Tech | 81 | | | | | | | | | | | | | | |
| 10 | Oregon Tech | 81 | | | | | Bethany (KS) | 77* | | | | | | | | |
| | | | | | | | Concordia Nebraska | 72 | | | | | | | | |
| 15 | Dominican California | 62 | | | | | | | | Concordia Nebraska | 72 | | | | | | | |
| | Concordia Nebraska | 73 | | | | | | | | | | | | | | |
| | Concordia Nebraska | 73 | | Concordia Nebraska | 68 | | | | | | | | | | | |
| | | | 2 | Cardinal Stritch | 54 | | | | | | | | | | | |
| | Virginia Intermont | 79 | 2 | Cardinal Stritch | 54 | | | | | | | | | | | |
| 2 | Cardinal Stritch | 94 | | | | | | | | | | | | | | |