2018-19 Atlantic Hockey Season

This is the 2018-19 Atlantic Hockey Conference season. This is the conference's 14th season under this name and the conference's 19th season overall. On September 7, 2018 the conference announced that the conference tournament semifinals and finals would be moved from the Blue Cross Arena in Rochester, New York to the HarborCenter in Buffalo, New York starting with the 2018-19 season.

Membership Changes

 * None

Format
All teams qualify. The top 5 seeds earn a bye to the quarterfinals. The 6th place team played the 11th place team and 7-10, 8-9 also being paired off in a best-of-three series. The teams are re-seeded for the best-of-three quarterfinals, with 1 playing 8 and 2-7, 3-6, 4-5 also being paired off in a best-of-three series. The winners advance to the single game semifinals with those winners advancing to the conference championship game. The semifinal and final rounds will be held at the HarborCenter in Buffalo, New York on March 22-23, 2019. The conference tournament champion earns the conference's automatic bid to the 2019 NCAA Division I Men's Ice Hockey Tournament.

First Round

 * Niagara Purple Eagles defeated Canisius Golden Griffins2 games to 1
 * Army Black Knights defeated Mercyhurst Lakers 2 games to none
 * Robert Morris Colonials defeated Holy Cross Crusaders 2 games to none

Quarterfinals

 * American International Yellow Jackets defeated Army Black Knights 2 games to 1
 * Niagara Purple Eagles defeated Air Force Falcons 2 games to none
 * RIT Tigers defeated Sacred Heart Pioneers 2 games to 1
 * Robert Morris Colonials defeated Bentley Falcons 2 games to 1

Semifinals

 * American International Yellow Jackets defeated Robert Morris Colonials 3-2 (ot)
 * Niagara Purple Eagles defeated RIT Tigers 1-0 (ot)

Final

 * American International Yellow Jackets defeated Niagara Purple Eagles 3-2 (ot)