I think it depends on both last names. You also have to think about forms- if it's too long it won't fit in forms and documents which causes problems all around. If it is long I would say give baby your maiden name as a middle name

Why not must make it a second middle name. Hyphenating is a pain in the ass. I wanted to honour my dad but I didn't like his first name lol so I used his last name which is "fox" for a middle name. I'm sure people think it's a strange middle name but seriously how often do you ever say anyone's middle name. I don't recommend a hyphenated name...but that's just me

As a kid that had a hyphenated last name I vote against it. I don’t even have a middle name and it was always a pain for me. Especially when I got married and wanted to keep my dads last name, but not my mothers. They said since it was hyphenated it counted as one name, and I couldn’t split it.

I’m using my last name as bubs middle name if it’s a boy. I know a few people who’ve done that. Could that be an option?

If you hyphenate, you're effectively creating s new last name with both components. There's really no need to hyphenate if you're not planning to have you LO use the hyphenated version on a daily basis. We're going to give my LO both of our last names unhyphenated (mine first) so that they both appear on legal documents but for day to day, he'll only use his father's last name. I have 2 other friends who've done this and it works well to preserve the connection while ensuring your LO doesn't have a crazy long surname.

My baby has a double barrelled last name. My SO’s first then mine

His then yours in Mexico this is still tradition and why we have so many darn names lol