2023 NAIA baseball tournament

The 2023 NAIA baseball tournament was the 66th edition of the NAIA baseball championship. The 46-team tournament began on May 15 with Opening Round games across ten different sites and concluded with the 2023 NAIA World Series in Lewiston, Idaho that began on May 26 and ended on June 2.

The Westmont (CA) defeated host Lewis–Clark State in a winner-take-all championship game 7–6 to capture their first national title in program history.

Lewis–Clark State's Isaiah Thomas won tournament MVP honors. Thomas became the first player since Oklahoma City's Chris Bradshaw in 1998 to win the tournament MVP on a non-championship winning team.

The 46 participating teams were selected from all eligible NAIA teams. The World Series host and 31 teams were awarded automatic bids as either champions and/or runners-up of their conferences, and 14 teams were selected at-large by the National Selection Committee. Teams were then placed into one of ten pre-determined Opening Round sites, with six sites consisting of five teams and four sites consisting of four teams, each of which is conducted via a double-elimination tournament. The winners of each of the Opening Round sites participated in the NAIA World Series.

Tournament procedure
A total of 46 teams entered the tournament, with Lewis–Clark State receiving an automatic bid into the Opening Round as World Series host. 31 automatic bids were determined by either winning their conference's regular season championship, conference tournament, and/or conference tournament runner-up. The other 14 bids were at-large, with selections determined by the NAIA Baseball National Selection Committee.

Opening round hosts
On May 1, the NAIA announced the ten opening round host sites, which were played from May 15–18.

Bids
Source:

Opening Round
Source:

Bellevue Bracket
Hosted by Bellevue (NE) at Don Roddy Field

Fayette Bracket
Hosted by Central Methodist (MO) at Estes Baseball Field

Hattiesburg Bracket
Hosted by William Carey (MS) at Milton Wheeler Field

Kingsport Bracket
Hosted by Visit Kingsport at Hunter Wright Stadium

Lawrenceville Bracket
Hosted by Georgia Gwinnett at Grizzly Baseball Complex

Lewiston Bracket
Hosted by Lewis–Clark State (ID) at Harris Field

Santa Barbara Bracket
Hosted by Westmont (CA) at Russell Carr Field

Shreveport Bracket
Hosted by LSU–Shreveport at Pilot Field

Upland Bracket
Hosted by Taylor (IN) at Winterholter Field

Williamsburg Bracket
Hosted by Cumberlands (KY) at Doyle Buhl Stadium

NAIA World Series
The NAIA World Series was held at Harris Field in Lewiston, Idaho.

Bracket
Source:

Game Results
All game times are listed in Pacific Daylight Time (UTC–07:00).