The 2008–09 Atlantic Coast Conference men's basketball season was the 56th season for the league. North Carolina won the regular season crown while Duke won the ACC Tournament championship. The season saw Tyler Hansbrough set conference records in points (finishing with 2,872 for his career) and free throws made (982), while Miami's Jack McClinton ended his career as the conference's all time three-point marksman (.440 3-point FG%).

Pre-season On October 26, for the second-straight year North Carolina was the unanimous choice to finish first atop the Atlantic Coast Conference basketball race in voting by 40 media members at the league's annual Basketball Media Day. Duke was picked for second, while Wake Forest was voted third. Miami was fourth, followed by Clemson (fifth) and Virginia Tech (sixth).

Tyler Hansbrough was selected as pre-season ACC Player of the Year. Hansbrough averaged 22.6 points and 10.2 rebounds during the 2008–09 while earning first-team All-America honors for a third-straight year and consensus National Player of the Year honors. Wake Forest's Al-Farouq Aminu was the media's choice for the ACC pre-season Rookie of the Year.

Hansbrough and Boston College's Tyrese Rice were unanimous selections for the pre-season All-ACC team. Also named to the pre-season team were Miami's Jack McClinton, North Carolina's Ty Lawson and Gerald Henderson from Duke.

On November 13, the Los Angeles Athletic Club released their annual pre-season John R. Wooden Award watch list. The list is composed of 50 student athletes who, based on 2007-08's individual performance and team records, are the early frontrunners for college basketball's most coveted trophy. These top 50 candidates are returning players. Transfers, freshmen, and medical red-shirts are not eligible for this preseason list, but will be evaluated and considered for both the Midseason Top 30 list and the National Ballot. The ACC was represented by Boston College's Tyrese Rice, Duke's Gerald Henderson and Kyle Singler, Miami's Jack McClinton, North Carolina's Tyler Hansbrough, Wayne Ellington and Ty Lawson and Wake Forest's James Johnson. In the 2007–08 season, North Carolina's Hansbrough became the 12th ACC Player to earn Wooden National Player of the Year Award.

Regular season November In November, nine ACC teams participated in eight regular season tournaments across the United States. Four ACC teams claimed championships. Name Dates Num. teams Championship 2k Sports Classic Nov. 10–21 Duke 71 vs. Michigan 57 Charleston Classic Nov. 14–16 Clemson 76 vs. Temple 72 Maui Invitational Nov. 24–26 UNC 102 vs. Notre Dame 87 76 Classic Nov. 27–30 Wake Forest 87 vs. Baylor 74 On November 11, Duke's Mike Krzyzewski moved into fifth place on the NCAA's all-time win list with his 805th career victory, a 97–54 win over Georgia Southern. On November 16, Virginia's Sylven Landesberg has 28 points, eight rebounds and eight assists as the Cavaliers beat VMI 107- 97. Landesberg's 28 points tied the second-highest total by an ACC freshman in his college debut. On November 21, With Maryland's 89–74 overtime win over Vermont, Gary Williams became only the third coach in league history to reach 400 career victories while coaching in the ACC. On November 21, Virginia's Sylven Landesberg netted a game-high 22 points in the Cavaliers' 68–66 win over Radford and became only the second freshman in ACC history to score 20 points in each of his first three games. Georgia Tech's Kenny Anderson scored 20 or more points in each of his first six games as a freshman in 1989–90. On November 30, Ty Lawson had 22 points as No. 1 North Carolina beat UNC-Asheville 116–48. The 68-point win margin was the largest in the ACC since a 75-point Maryland win over North Texas State (132–57) on Dec. 23, 1998, and tied for the seventh largest margin ever in ACC history.

December On Wednesday, December 3, The ACC won its 10th-straight ACC–Big Ten Challenge by winning six of the eleven matchups. The series was highlighted by the 98–63 victory of No. 1 North Carolina over No. 12 Michigan State at Ford Field in what was dubbed as "Basketbowl II". On December 23, Boston College's Corey Raji was a perfect 12-for-12 from the field and scored a career-high 26 points in a 99–61 win over Maine. Raji's performance tied him for the second-best single game performance in ACC history. UNC's Brad Daugherty holds the ACC single-game field proficiency mark making all 13 of his shots versus UCLA back on Nov. 24, 1985. On December 30, NC State sophomore Tracy Smith came off the bench to score a career-high 31 points in the Wolfpack's 88–68 win over visiting Towson. Smith's 31 points set a school record and tied for the third-highest point total by a non-starter in ACC history.

January On January 3, Jeff Teague had a game-high 30 points and James Johnson adds 22 points and 15 rebounds as sixth ranked Wake Forest snapped the nation's longest home court winning streak at 53 with a 94–87 win at BYU before a crowd of 26,096. On January 19, 16–0 Wake Forest took over the No. 1 spot in the AP poll and became the second ACC team to be ranked No. 1 in both the writers and coaches' polls. With the Deacons assuming the top spot in his 46th game as a head coach, Dino Gaudio became the third-fastest ACC head coach to have his team voted #1. On January 26, 18–1 Duke became the third ACC team this season to be ranked No. 1 in the AP poll, marking the second time in ACC annals and the fourth time in AP poll history that three different teams from the same conference have been ranked No. 1 in the same season. On January 31, In only the second-ever meeting between brothers in an ACC game, the Aminu brothers (Alade and Al-Farouq) combine for 27 points and 24 rebounds as Georgia Tech upsets No. 4 Wake Forest 76–74 in Atlanta. Al-Farouq had 17 points, 11 rebounds and five steals for the Deacons while Alade had 10 points, 13 rebounds for the Jackets.

February On February 5, midway through the 2009 college basketball season, the Los Angeles Athletic Club's John R. Wooden Award Committee selected the top 30 candidates for the John R. Wooden Award, the nation's most coveted college basketball honor. The list is composed of the players who will compete for this season's player of the year award, the midseason list is based on individual player performance and team records during the first half of the season. The ACC was represent by North Carolina's Tyler Hansbrough, Ty Lawson, Duke's Gerald Henderson, Kyle Singler and Wake Forest's Jeff Teague. Teague was one of nine players who were selected for the midseason list who were not selected in the preseason.

On February 15, Ty Lawson had 21 points and four assists and Wayne Ellington added 15 points and 10 rebounds in North Carolina's 69–65 win at Miami. With the win, UNC's Roy Williams' became the winningest coach through his first 200 games at an ACC school. On February 21, Greivis Vasquez posted Maryland's first triple-double since 1987 as the Terps overcame a 16-point second-half deficit to beat No. 3 North Carolina 88–85 in overtime, ending the Tar Heels' 10-game win streak. In posting Maryland's third ever triple double, Vasquez had a career-high 35 points, 11 rebounds and 10 assists. Vasquez's 35 points set a record for the most ever by an ACC player recording a triple-double.

On February 22, In North Carolina's 104–74 win over Georgia Tech, the Tar Heels' Tyler Hansbrough made all eight of his free throws and became the NCAA career leader in free throws made with 907. Hansbrough broke Wake Forest's Dickie Hemric's record set in 1955 with his 906th free throw with 14:54 to play in the second half.

March On March 7, Miami's Jack McClinton was a perfect 16-for-16 from the free throw line and scored a game-high 24 points as the Hurricanes overcame a nine-point halftime deficit en route to a 72–64 win over visiting NC State. McClinton's 16-for-16 effort tied for the fourth-best single-game mark in league history.

Rankings AP Poll Pre 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 FinalBoston College 17 RV RV RV Clemson RV RV RV RV RV 25 22 20 12 10 10 12 10 12 13 12 18 17 24 Duke 8 10 7 4 7 6 5 5 2 3 2 1 4 6 9 7 7 9 6 Florida State RV RV RV RV RV RV RV RV RV 25 RV 23 24 22 16 Georgia Tech RV Maryland RV RV RV RV RV RV Miami 17 17 22 21 RV RV RV RV RV RV RV RV RV North Carolina 1 1 1 1 1 1 1 1 3 5 5 5 3 3 3 4 2 1 2 NC State Virginia Virginia Tech RV RV RV Wake Forest 24 20 19 15 11 10 6 6 4 2 1 6 7 7 8 13 10 8 12

Statistics

Individual

NameSchoolPPGToney DouglasFSU21.5Tyler HansbroughUNC20.7Jack McClintonMiami19.3 A. D. VassalloVT19.1 Jeff TeagueWF18.8

NameSchoolRPGTrevor BookerClem.9.7 Gani LawalGT9.5 James JohnsonWF8.5Jeff AllenVT8.4 Al-Farouq AminuWF8.2

NameSchoolAPGTy LawsonUNC6.6 Tyrese RiceBC5.3 Greivis VasquezMD5.0 Iman ShumpertGT5.0 Malcolm DelaneyVT4.5

NameSchoolSPGTy LawsonUNC2.1Iman ShumpertGT2.1 Jeff TeagueWF1.9 Jeff AllenVT1.8 Toney DouglasFSU1.8

NameSchoolBPGSolomon AlabiFSU2.1 Trevor BookerClem.2.0Alade AminuGT1.8 Ed DavisUNC1.7 Assane SeneUVa1.6

NameSchoolFG%Trevor BookerClem..571 Gani LawalGT.556 James JohnsonWF.542 Ty LawsonUNC.532 Alade AminuGT.522

NameSchool3FG%Jack McClintonMiami.453 Terrence OglesbyClem..388 Lewis ClinchGT.338

NameSchoolFT%Jack McClintonMiami.885 Malcolm DelaneyVT.869 Greivis VasquezMD.867 Tyrese RiceBC.856 Uche EchefuFSU.848

Teams TeamGPFPAPFPGPAPGMarginFGFGAFG%3FG3FGA3FG%FTFTAFT%RebFRebAMarginBoston College342528239774.470.5+3.98852000.443217649.334541733.73812591167+2.7Clemson322507217778.368.0+10.39121971.463256684.374427621.68811891127+1.9Duke362813236278.165.6+12.59552126.449262739.355641880.72813141198+3.2Florida State352392227168.364.9+3.58201886.435216631.342536739.72512531221+0.9Georgia Tech312208221671.271.5−0.38151868.436159492.323419665.63012111143+2.2Maryland352512241971.869.1+2.79242179.424201604.333463611.75812741333−1.7Miami322325212372.766.3+6.37961865.427251682.368482706.68312721107+5.2NC State302189208773.069.6+3.47731626.475202538.375441615.7171075973+3.4North Carolina383413273589.872.0+17.812052509.480264682.387739983.75215941353+6.3 Virginia281960202970.072.5−2.57011682.417156494.316402543.7401030990+1.4Virginia Tech342470240572.670.7+1.98451934.437207615.337573791.72412571153+3.1Wake Forest312510219381.070.7+10.29061849.490126394.320572804.71112621080+5.9

Postseason

ACC Tournament

The third-seeded Duke Blue Devils defeated fourth-seeded Florida State 79–69 in the title ACC Championship game on Sunday, March 15, giving Duke its ninth ACC crown in 12 years. Duke also tied North Carolina for most tournament championships with 17. Duke's Jon Scheyer was named the tournament MVP.

NCAA Tournament