No, Judas Iscariot did not die on the cross. The New Testament describes his death differently depending on the Gospel account.
* Matthew 27:5 says that after betraying Jesus, Judas was filled with remorse, returned the money to the chief priests and elders, and then went and hanged himself.
* Acts 1:18 offers a different account, stating that Judas bought a field with the reward for his wickedness, and "falling headlong he burst open in the middle and all his bowels gushed out."
Although there are varying accounts of how Judas died, it is clear that he did not die on the cross.