Lockdown (2005) was a professional wrestling pay-per-view (PPV) event produced by the Total Nonstop Action Wrestling (TNA) promotion, which took place on April 24, 2005, at the TNA Impact! Zone in Orlando, Florida. It was the first event under the Lockdown chronology and the fourth event in the 2005 TNA PPV schedule. Eight professional wrestling matches and one pre-show match were featured on the event's card. Every match took place inside a six sided steel structure known as the Six Sides of Steel. As a result, Lockdown was the first-ever all steel cage event held in professional wrestling.
Allen Jones
Chris Parks
Jeffrey Jarrett
Montaque Brown
Monty Sopp
Page Falkinburg Jr.
Sean Waltman
Brian James
Daniel Covell
Elix Skipper
James Cox
Chris Harris
Jeremy Fritz
Peter Williams III
Jeff Hardy
Scott Levy
Dustin Runnels
Robert Roode Jr.
Chris Candito
Lance Hoyt
Sonny Siaki
Germán Figueroa
José Luis Jair Soria
Josh Harter
Retesh Bhalla
Matt Bentley
Stephanie Finochio
Kevin Nash
Virgil Runnels
Alastair Ralphs
Tracy Brookshaw