Is it acceptable to use another given name when i sign official documents or...

[jay]

...introduce myself? If for instance my full name was John, Peter, Joe Smith and i am used to sign my official documents and bank papers with John Smith, would it be acceptable and legal to sign with Peter Smith or introduce myself as Peter Smith?

I normally only sign with my family name, but when i fill in a form i write something like John Smith, my bank registration also only includes one of my given names. Imagine that i have 3 first names on my passport, can i just pick any of these?

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My passport states:

Given Names: John, Peter, Joe
Surname: Smith

 

[Qassem]

no
you must write them all or tell them before summit it
it happened with once
in saudi arabia

 

[Michael]

Most official forms will want your first name, middle name, and last name. And that is what you must list. How you introduce yourself is up to you. If you are in some formal setting, i.e., giving testimony in court, you will be asked your name and you are required to use you legal name, not nick names or your middle name instead of your first name.

The use of an incorrect form of you name on official documents does not carry any penalty that I am aware of. However, it does create confusion when transferring something like a deed where proper names and identifications are very important.