The 2007 Cyber Sunday was the fourth annual Taboo Tuesday/Cyber Sunday professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE). It was held for wrestlers from the promotion's Raw, SmackDown!, and ECW brand divisions. The event took place on October 28, 2007, at the Verizon Center in Washington, D.C. The most important feature of Cyber Sunday was the ability for fans to vote online through WWE.com on certain aspects of every match. While it was the fourth event in this interactive PPV's chronology, it was only the second titled Cyber Sunday as the first two events were titled Taboo Tuesday.

The main match on the SmackDown! brand was Batista versus The Undertaker for the World Heavyweight Championship, which Batista won by pinfall after executing a Batista Bomb. The special guest referee, which was either Stone Cold Steve Austin, John "Bradshaw" Layfield, or Mick Foley. The predominant match on the Raw brand was for the WWE Championship between Randy Orton and the fans' choice of either Shawn Michaels, Jeff Hardy, or Mr. Kennedy. The voting for the event started on October 9, 2007, and ended during the event.

Most of the existing feuds continued after the event. Notably, Shawn Michaels would continue to feud with Randy Orton over the WWE Championship, which led to a match at Survivor Series for the championship, which Orton won. After losing to Batista, Undertaker challenged Batista to a Hell in a Cell match at Survivor Series for the World Heavyweight Championship, which Batista won after Edge interfered. Edge then became a part of the feud and it became a Triple Threat match at Armageddon for the World Heavyweight Championship, which Edge won. After beating Umaga in a Street Fight, Triple H faced off against Umaga in a Survivor Series match. Triple H's team won the match and their feud ended.

The event had 194,000 buys, down from the Cyber Sunday 2006 figure of 228,000 buys.