Hello how may I help you? What is the deepest point on earth? That would be The Marianna Trench at 8,212 ft deep. Hope this helps Does that place go by any other name? I've heard Challenger Deep was the deepest Yes, Marianas Trench. Oh okay so they are both the same place You're correct! Challenger Deep is actually the lowest part of the trench. Okay, thanks Anytime. Need me to help you with something else? Not now, thanks anyway. Alright. Take care for now!