|High scorer||Brendan Byrne, Mounds Park|
|Field||128 (12 SS)|
The 2006 High School National Championship was won by Richard Montgomery, consisting of Chris Ray, Chris Higgins, Jeffrey Siegel, and Keith Jamieson. The tournament was held at the Crowne Plaza Hotel in Rosemont, Illinois.
128 teams competed in the tournament, in what is believed to be the first such national championship to host over 100 schools at one site. It also marked the first year in which the NAQT HSNCT could rightfully claim the title of the biggest high school national tournament. The overall success of this tournament prompted NAQT to stop rotating the site of the tournament, and keep it in the Chicago area.
Richard Montgomery beat State College in the second game of an advantaged final (325-230) to win the tournament. The second-place State College won the first game of an advantaged finals, 395-270, in part thanks to a wide variety of Chris Ray negs, including answering "Ice Age" for "Great Awakening". However, Richard Montgomery came from behind to win the second match and the tournament. Maggie Walker finished third after losing to Walter Johnson early in the playoffs and being eliminated by State College. The Joel Knight-led DCC team placed fourth.
Richard Montgomery negged a total of 83 times over the course of the tournament, which remains, as of 2016, the all-time team record for negging in a single HSNCT.
Top 10 teams:
|2.||State College||7.||Thomas Jefferson|
|4.||Detroit Catholic Central||9.||Cistercian Prep|
|5.||Shady Side Academy||10.||Mounds Park|
Top 4 Small Schools:
With the greatly expanded field, NAQT increased the size of its All-Star Team to 20 individuals. It also began more formal recognition of a Sophomore All-Star Team and a Freshman All-Star Team.
|1.||Brendan Byrne||Mounds Park||11.||Zach W||Tippecanoe|
|2.||Chris Ray||Richard Montgomery||12.||Kareem Seifeldin||Troy|
|3.||Dennis Sun||American School Shanghai||13.||Geoffrey Thomas||Laffayette|
|4.||Kurtis Droge||East Lansing||14.||Ben Schenkel||Moravian Academy|
|5.||Harold Kingsberg||Millburn||15.||Stephen Hou||Fort Mill|
|6.||Joel Knight||Detroit Catholic Central||16.||Mark Guerci||Maggie Walker|
|7.||Kunle Demuren||Ocean Lakes||17.||James Cooper||Lisgar Collegiate|
|8.||Richard Kitterman||Robinson||18.||Henry Gorman||Wilmington Charter|
|9.||Nick Truelson||Sioux Falls Home School||19.||Papa Chakravarthy||Dunbar|
|10.||Dallas Simons||MLK||20.||Andy Knowles||Brindlee Mountain|
|Rank||Top Sophomores||Team||Rank||Top Freshmen||Team|
|1.||Kurtis Droge||East Lansing (MI)||1.||Henry Gorman||Wilmington Charter|
|2.||Richard Kitterman||Robinson (VA)||2.||Cody Simmons||MLK (TN)|
|3.||Nick Truelson||Sioux Falls Home School (SD)||3.||Alex Friedman||Minnetonka (MN)|
|4.||Dallas Simmons||MLK (TN)||4.||Puya Gerami||E.O. Smith (CT)|