[dpifke]

I have a very common first name (Dave) and a very uncommon last name (Pifke, pronounced PIF-key). The majority of my close friends call me by my last name, since there are several other Daves and Davids in our friend group.

My brother's friends do likewise, since his first name is Mike and he runs with a bunch of other Mikes and Michaels.

There's a naming collision when my brother and I hang out together, but since we live in different states, the system usually works.

[mhink]

Similar here. My last name is pretty unusual, but my first name is common, so I generally go by my last name with friends and colleagues. Oddly, I've gotten so used to this that it feels a little bit more formal when someone addresses me by my first name.

To make matters even more complicated, when I do use my first name, I almost always use an abbreviation. The only people that use my full first name are my parents, sister, and (occasionally) my wife, and it's really off-putting to hear it otherwise.

Names are interesting and weird.

[dylan604]

There's always first initial partial last. DPif and MPif

[DiggyJohnson]

Same. I work with a girl with first name Emily last name rhymes with “Wacky”. The latter is so much for fun to say and avoids collisions.