Probably not. But that's fine with me--I HATE having to make small talk with people I don't know well. It's even worse if the parties are for adults only, since we don't have a good babysitter or any local family.
DH's work does a holiday potluck party at the office (ie, no cost to the government) during the work day, so it's employees only.
I'm supposed to volunteer at all 3 kids' holiday parties at school, but I'm missing party #1 tomorrow due to a sick kid

That probably doesn't count anyway, huh?
Our entire family was invited to one joint Christmas/Hanukkah party. The oldest child used to be friends with my oldest, but they've grown apart in the last couple years. I feel a little awkward going since we don't see them the rest of the year and don't know anyone else there, so we haven't decided about that one yet.
We'll have family here for the weekend over Christmas weekend, so we're planning to do a small family Hanukkah party then, plus Lauren's family birthday party with the same people on 12/26. But I don't think either of those is a "real" party, and they're certainly not Christmas parties. So....no. No Christmas parties for us this year.