The 2014–15 Atlanta Hawks season was the 66th season of the franchise in the National Basketball Association (NBA) and the 47th in Atlanta.^[1] Their Southeast Division championship was the first for the Hawks since winning the Central Division in 1994. It was the best finish by the team since finishing first in the Eastern Conference during the 1993–94 season. This was the first time since the Southeast Division was created for the 2004–05 season that the division title was not won by a team from the state of Florida.

The Hawks finished the season with a 60–22 record for a franchise high in wins, earning them the first seed in the Eastern Conference and home court advantage for the Conference. The Hawks would reach their first-ever Conference finals since the NBA was split into two conferences, but their season ended with a four-game sweep against the Cleveland Cavaliers, the team that swept them in the 2009 Conference Semi-finals. The Cavaliers would go on to lose to the Golden State Warriors in the Finals in six games. The Hawks became the first #1 seed to get swept in a playoff series since the Detroit Pistons in 2003 as well as the first #1 seed since the 2011–12 San Antonio Spurs to lose in the conference finals. Their 22 wins improvement was the second largest by a team that made playoffs in consecutive non-lockout seasons behind 25 wins by the 1995–96 Chicago Bulls.

The Hawks would not return to the conference finals until 2021 where they were defeated by the eventual champion Milwaukee Bucks, led by former Hawks coach Mike Budenholzer, in six games.