The 2003 Bad Blood was the second Bad Blood 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 June 15, 2003, at the Compaq Center in Houston, Texas. It replaced the previously annual King of the Ring PPV and marked the beginning of worldwide pay-per-views (with the exception of the older and more significant Royal Rumble, WrestleMania, SummerSlam, and Survivor Series pay-per-views) being brand exclusive (the UK-exclusive pay-per-views had been brand exclusive since Insurrextion 2002). It was the first Bad Blood held since 1997, which was originally held as an In Your House event.

The main event was a Hell in a Cell match, featuring wrestlers fighting in a ring surrounded by a steel structure. In this match, World Heavyweight Champion Triple H defeated Kevin Nash to retain his title. Two predominant bouts were featured on the undercard; in respective Singles match, Ric Flair defeated Shawn Michaels and Goldberg defeated Chris Jericho.

The event marked the second time the Hell in a Cell format was used by WWE in a Bad Blood event; the first was at the inaugural Bad Blood in 1997. The 2003 Bad Blood event grossed over $500,000 ticket sales from an attendance of 10,000. This event helped WWE increase its yearly pay-per-view revenue by $6.2 million from the previous year. When the event was released on DVD, it reached a peak position of second on Billboard's DVD Sales Chart.