Googleganger

googleganger:
Similar to that of a doppleganger, it is another individual with the same name as you whose records and/or stories are mixed in with your own when you Google yourself.

"Hey, I just googled my name and found that I have three googlegangers!"
-Urban Dictionary

So Basically,

when you Google your name, his/her name shows up but of course that other person’s profile is totally different from yours!

This leads to frustration in a lot of cases because it shows that you have no credit against you and that Google lacks complete info about you whereas the other person has achieved so much that there are research papers he/she has worked upon, conferences they have attended etc. It basically results in you realizing what a dead beat you are.

Link