Semi-Final 2 of Robot Wars: The Fifth Wars was the second of two Semi-Finals which determined the Grand Finalists of Robot Wars: The Fifth Wars. Each Semi-Final had three initial battles, with a Losers Melee to decide which defeated robot would receive a second chance. The three first round winners and the winner of the Losers Melee would then pair off to decide which two robots would progress to the Grand Final. The episode featuring Semi-Final 2 was originally broadcast on May 23, 2002 on BBC Choice and repeated on October 25, 2002 on BBC Two.