The "Pope" is indeed mentioned.
Matt 17:18-19
And I tell you, you are Peter, and on this rock I will build my church, and the gates of hell shall not prevail against it. I will give you the keys of the kingdom of heaven, and whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.”
Jesus is referring above to Is 22:22, and to the royal house of David, and the royal keeper of the house, who possesses the keys of the kingdom, whose doors he shuts, none shall open, and whose doors he opens none shall shut. Jesus is echoing this divine decree here in Matthew and issues it to Simon with a new title, "Peter", or "rock", the same firm foundation the "wise man" builds his house upon that will never fall, found in Matthew 7. Matthew calls Jesus the new "David". Petros or Peter, is His new prime minister.
The disciples present, who of course knew Scripture, would know Christ's reference to Is 22:22, and would also know Jesus was appointing Peter to that office.
The irony is that Protestants who make the claim there is no Pope in the Bible wouldn't know the Bible's contents to begin with without the Pope's decree and declaration regarding which books were Biblical from the fourth century, from among the hundreds of books and letters considered Scripture in the first centuries of Christianity. See the history.
There were no Protestants for fifteen centuries and the Bible itself doesn't reveal an explicit Canon.
Protestants must presume a canonical tradition too. And since Protestants are barely five centuries old, that tradition must be a Catholic one. They implicitly submit to the Pope's declaration by accepting the content of Scripture--even to deny the Pope with.
Truly ironic.