The 2005 Taboo Tuesday was the second annual Taboo Tuesday/Cyber Sunday professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE). It was held exclusively for wrestlers from the promotion's Raw brand division. The event took place on November 1, 2005, at the iPayOne Center in San Diego, California. The theme of the event was that fans were given the chance to vote on stipulations for the matches. The voting for the event started on October 24, 2005, and ended during the event. It was also the final event titled Taboo Tuesday, as the following year, the event was moved to the traditional Sunday nights for PPVs and was renamed as Cyber Sunday.

Eight professional wrestling matches were featured on the event's card. The main event was a Triple Threat match, a standard match involving three wrestlers, for the WWE Championship. In this match, John Cena defeated Kurt Angle and Shawn Michaels to retain his title. Two bouts were featured on the undercard. In a retrospective singles matches for the WWE Intercontinental Championship, Ric Flair defeated Triple H in a Steel cage match, which is fought in a cage with four sheets of mesh metal around, in, or against the edges of the wrestling ring, in which Flair won by escaping the cage and having both feet touch the arena floor. The other featured an Interpromotional tag team match where Rey Mysterio Jr. and Matt Hardy (SmackDown!) defeated Chris Masters and Snitsky (Raw).

Taboo Tuesday received 174,000 pay-per-view buys, which was the same amount as the previous year's event. The professional wrestling section of the Canadian Online Explorer website rated the entire event 7 out of 10 stars, higher than the 2004 event rating of 5 out of 10 stars.