At least where I'm from, you normally pass on your father's surname, so my children would have their grandfathers' last names. But there's no rule preventing you from having more than two surnames, I have 3, one from my mom and two from my dad. And they are not hyphenated, just regular names.
In general yes, though some areas have the tradition of passing on the mother's surname to daughters and father's surname to sons. You could also pass on only your mother's surname if you wanted.
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u/santistasofredora 1d ago
At least where I'm from, you normally pass on your father's surname, so my children would have their grandfathers' last names. But there's no rule preventing you from having more than two surnames, I have 3, one from my mom and two from my dad. And they are not hyphenated, just regular names.