Is Jesus real? If he was real then Santa Clause must be real too..?

Yes, Jesus is real. There is more historical evidence for Jesus than for any other person of ancient history. First, the New Testament which talks about Jesus, was written between 45 AD- 95 AD(most likely it was completed before 70 AD). It was written by people who knew Jesus in person, and their friends. Secondly, there are many ancient writings about Jesus outside of the Bible, by both non-christians and Christians. Some of these extra-biblical writings are by: Josephus, Tacitus, Suetonius, Ignatius, Ireneus, Pliny the Younger, Babylonian Sanhedrin 43a, Clement, Polycarp, Eusebius, and others. So there is no doubt that Jesus existed, and that He is exactly who the Gospels say He is.