Is it okay to put a preferred name on common app?

<p>My name is Osama and I absolutely DESPISE the name, not only because of the racism and Islamophobia aspect but also because I simply hate it. My religious beliefs aren't even Moslem. When I move to the states, I wanna be called Sam (which is what my name would be if you cut the initial and the last letter). Would it be okay if I put that as my preferred name on the common app? Would it make me look like a self hating pric*? Can I do it without my parents finding out?</p>