When families speak two different languages, how do you begin to make a seating chart?

I'm in a similar situation, FH's family mostly all speak great English but some more than others but personally when I attend a wedding I prefer to sit with people I know so we will likely seat people by social circle which will inevitably lead to tables being somewhat language-segregated but I think it's ok, people don't really go to a wedding to mingle they go for the bride and groom and want to spend time with people they already know.

At my uncles wedding, he married a Korean lady (she's hilarious btw) and she had very few family members there but they didn't speak any english. She had both an English and korean officiant, and I thought it was pretty neat even though I didn't understand a word of it. My aunt introduced her family to all my family. It wasn't very big so there was like 3 tables so everyone was mingled. despite the language barrier everyone got on the dance floor (universal language at its best!) and boogie the night away.

My family is Mexican and FHs family is from the U.S. I'm seating all our friends together since they will have more fun together and then for our families I'm splitting tables with some of his English speaking family and my Spanish speaking family that also speaks English. For the only-Spanish speakers, I will be seating them at tables together so that they feel comfortable and can converse easily. They will have plenty of time to mingle and awkwardly introduce themselves to others so I'd rather dinner be comfortable for them and not forced language practice session.

I am also having a 1/2 Spanish, 1/2 English wedding with some Spanish only speakers who just flew in from Chile! I am trying to create a bi-lingual program to explain all the kooky and wonderful things we are doing at the ceremony and then thought it would be nice for my FH and I to give a bilingual speech to thank everyone for coming. I made the tables by social circles, so there won't be any cross-pollination of sides other than tables will be next to each other and hopefully everyone will come together on the dance floor, which knows no language! Good luck.

My family mostly speaks Portuguese and FHs is English. A lot of my family speak English well but we are keeping out familys together for the most part. We have a few overlapping but usually at weddings I like being seated with people I know, talk to and have fun with. A wedding is sometimes a hard place to have people meet and mingle, especially with the language difference. I would just keep your family together and his. It makes your lives way easier.

I don't think it will feel like language-segregation! I think people will be happy to sit with their family and friends, and those who want to mingle as always able to do so!

Yeah I would segregate them by family or seat them by people they know, that way it won't be language separation, and people will know others at their table/ table area to talk to.

At the Spanish-English wedding I attended, I got the impression that the bilingual guests (bride, groom, MOH, bride's brother and his girlfriend) enjoyed translating for everyone. I think the key is including them in the conversation and not just using them for translation. For dinner, we were seated with people we knew (which I appreciated), and then after dinner we mingled a little. Unfortunately, there was more segregation than the average wedding, but we all still had a great time getting to talk with the bride's family who spoke English. You could also encourage your non-bilingual guests to install google translate on their phones so they won't need a human translator. Good luck!

Our two families speak the same language, and other than our parents, our families were segregated by family. I didn't want to mix up the families unless I had to. I wouldn't worry about it.