Most (though not all) Greek surnames are also gendered. The common practice is to inherit your fathers surname, changing the gender if you're born female. For example, a quite common surname is Papadopoulos (masculine) / Papadopoulou (feminine). It was usually chopped into "Pappas" when Greek immigrants to US were passing through Ellis Island.

Till the '90s at least there was an unofficial convention of anglicizing our surnames using the masculine form, ending up with things like Eleni (Helen) Papadopoulos, which in Greek sounds like a grammatical monstrosity.

Other surnames were commonly mangled in weird ways - Nicholas Metropolis (of the Metropolis-Hastings algorithm) surname was Μητρόπουλος (Mitropoulos). Metropolis is quite near phonetically but grammatically makes no sense in Greek.