ECW One Night Stand (2006) was a professional wrestling pay-per-view event produced by World Wrestling Entertainment (WWE). It was held on June 11, 2006, at the Hammerstein Ballroom in New York, New York. This event is considered the launching event for WWE ECW.
- Tazz defeated Jerry Lawler
- Kurt Angle defeated Randy Orton by submission
- The Full Blooded Italians (Little Guido Maritato and Tony Mamaluke) (with Big Guido) defeated Yoshihiro Tajiri and Super Crazy
- Rey Mysterio (c) vs. Sabu ended in a no contest - Extreme Rules match for the WWE World Heavyweight Championship
- Mick Foley, Edge, and Lita defeated Terry Funk, Tommy Dreamer, and Beulah McGillicutty - Extreme Rules intergender six-person tag team match
- Balls Mahoney defeated Masato Tanaka - Extreme Rules match
- Rob Van Dam defeated John Cena (c) - Extreme Rules match for the WWE Championship - This was RVD's Money in the Bank cash-in match