Supercard of Honor IV was the 4th Supercard of Honor professional wrestling event produced by Ring of Honor (ROH), which took place on April 3, 2009 at George R. Brown Convention Center in Houston, Texas. As with other Supercard of Honor events, it too place in the same weekend and same metropolitan area as WrestleMania 25.

Thirteen matches were contested as part of the event, the opening two of which were dark matches. In the main event, Jerry Lynn defeated Nigel McGuinness to claim the ROH World Championship. In another championship match, Kenta defeated Davey Richards to retain the GHC Junior Heavyweight Championship.

Supercard of Honor IV featured professional wrestling matches, which involved different wrestlers from pre-existing scripted feuds, plots, and storylines that played out on ROH's television programs. Wrestlers portrayed villains or heroes as they followed a series of events that built tension and culminated in a wrestling match or series of matches.^[1]

Reviewing the event for 411mania.com, J.D. Dunn gave the show an overall rating of 8 out of 10, describing it as "Not the... blowout show that it has been in the past, Supercard still gives us a fantastic Match of the Year Candidate in Davey vs. KENTA and a huge title change", whilst also noting that "The undercard is filled with some not-so-good-but-memorable moments."^[2]

• 2009 in professional wrestling

• Ring of Honor's official website