Lockdown (2006) was a professional wrestling pay-per-view (PPV) event produced by Total Nonstop Action Wrestling (TNA), which took place on April 23, 2006 from the Impact Zone in Orlando, Florida. It was the second annual event under the Lockdown chronology. Eight matches were featured on the event's card. In the tradition of Lockdown events, every match took place inside a steel structure with six sides, known as Six Sides of Steel. This event also marked the TNA debut of Christy Hemme. The event was featured in an episode of House.

Jeffrey Jarrett
Jeff Jarrett

Scott Rechsteiner
Scott Steiner

James Cox
"Cowboy" James Storm

Chris Harris
"Wildcat" Chris Harris

Steve Borden
Sting

Allen Jones
AJ Styles

Terry Gerin
Rhino

Ron Killings
Ron "The Truth" Killings

Jason Reso
Christian Cage

Chris Parks
Abyss

Mark LoMonaco
Brother Ray

Devon Hughes
Brother Devon

WWF: Hardy Boyz - Leap of Faith
WWF: Hardy Boyz - Leap of Faith

WCW All Nighter 1995
WCW All Nighter 1995

WWE Payback 2017
WWE Payback 2017

AEW Women's Eliminator Tournament
AEW Women's Eliminator Tournament

WWE: The Ladder Match
WWE: The Ladder Match

The Unbreakable Bunch
The Unbreakable Bunch

WWE Battleground 2014
WWE Battleground 2014

NJPW Dominion 6.11 in Osaka-jo Hall
NJPW Dominion 6.11 in Osaka-jo Hall

WWE - John Morrison - Rock Star
WWE - John Morrison - Rock Star

WWE Money in the Bank 2017
WWE Money in the Bank 2017

The Champions Five Supermen
The Champions Five Supermen

AWA SuperClash IV
AWA SuperClash IV