Yes. At the last two companies I've worked at, I've been the only non-Indian. I also live in India more than half the time (my current company is based there). When I'm in the US, I practice FMA, and I'm often the only non-Filipino in the room. I plan to travel to Cebu city soon to kick up my training, and I'll likely be the only white guy in my gym. At a yoga class, I'm often the only man.
Does this make me the "odd one out"? I could choose to view things that way, but I don't. At work I might be the only white guy, but we are all there to build a great product. At FMA, we are all there to learn how to kick ass. At yoga, we are all there to become stronger and more flexible.
If you attend tech events and focus on the differences between yourself and everyone else, you'll feel left out. And you'll have no one to blame but yourself.