Viktor Cherevin: You Americans like to think of yourselves as direct. Perhaps you are just rude.
Jack Ryan: You Russians like to think you're poets, but perhaps you're just touchy.
President: What's your name, son?
Jack Ryan: Ryan, Mr. President, Jack Ryan.
Jack Ryan: You didn't pick this life, I did.
Cathy Muller: But I chose you.
Answer: This is true of all versions of the character - his name's officially John Patrick Ryan, but he always goes by Jack.