Crowd-Sourced Common Nicknames Dataset

I know that this is not directly tied to the scope of this community, but I suspect that some of you might be interested or have an answer for me. Over on Stack Overflow, I posted this topic with multiple questions:

My question to this community is: Is there an open-source, crowd-sourced dataset of common name variants (a.k.a. nicknames) that can be downloaded and imported into a local database to facilitate name matching? I did find one, but it was mostly French names.