Around the globe, Peter Brian (Peter Brian 
) is a rare masculine first name. The forename Peter Brian is habitual in Ireland, where it is a rare masculine name, Philippines, where it is a very rare masculine name, and Chile. In absolute terms, it most frequently occurs in Philippines, Ireland, and the United Kingdom. Very seldom, Peter Brian is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Peter Brian | Australia, Philippines, Ireland, United Kingdom, Chile |
| peter brian barry Philosophy, Saginaw Valley State University, US (b. 1974) |
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