<p>I have to agree with oldfort. I don’t think you have to renounce your UK citizen to become a US citizen. If that is the case that is news to me. The only time that I can think of when you need to renounce your passport is when you’re applying for government clearance. You can only hold one passport in that case and it makes perfect sense because you can’t have loyalty to both countries( even if UK and US are friends now). You can google it and find out.</p>