Hard Justice (2005) was a pay-per-view (PPV) event produced by the Total Nonstop Action Wrestling (TNA) promotion, which took place on May 15, 2005 at the TNA Impact! Zone in Orlando, Florida. It was the first event under the TNA Hard Justice chronology and the fifth event in the 2005 TNA PPV schedule. Eight matches and one pre-show match were featured on the event's card.
The event is marked for Styles' winning the NWA World Heavyweight Championship for the third time and for opening with a memorial for Chris Candido, who died prior to the show. Jason Clevett of the professional wrestling section of the Canadian Online Explorer felt the event was the "most entertaining pay per view from TNA since January's TNA Final Resolution 2005."
- PreShow - Shark Boy defeated David Young for entry in the Gauntlet for the Gold
- Team Canada (Eric Young and Petey Williams) (with Coach D'Amore) defeated Apolo and Sonny Siaki
- Michael Shane and Trinity defeated Chris Sabin and Traci - Mixed Tag Team match
- Raven defeated Sean Waltman - Clockwork Orange House of Fun match
- Monty Brown and The Outlaw defeated Diamond Dallas Page and Ron Killings
- The Naturals (Andy Douglas and Chase Stevens) (c) defeated America's Most Wanted (Chris Harris and James Storm) for the NWA World Tag Team Championship
- Christopher Daniels (c) defeated Shocker for the TNA X Division Championship
- Abyss defeated Bobby Roode, Zach Gowen, Eric Young, Cassidy Riley, Elix Skipper, Shark Boy, A-1, Chris Sabin, Petey Williams, Sonny Siaki, Lance Hoyt, Michael Shane, Jerrelle Clarke, Mikey Batts, The Outlaw, Trytan, Ron Killings, Apolo and B.G. James - Twenty-Man Gauntlet for the Gold to become number contender to the NWA World Heavyweight Championship
- A.J. Styles defeated Jeff Jarrett (c) for the NWA World Heavyweight Championship with Tito Ortiz as Special Guest Referee