Short answer: yes

Longer answer: yes but with fine print.

The tradition of patron saints descends at least in part from late Roman state cults and the idea that these different deities presided over specific domains in which one could ask for their assistance. But there's also a medieval tradition of patron saints being named from among a city or principality's clergy to help shore up support of the local ruler or to endorse some theological / political movement that saint was associated with.

There are a handful of "modern" patron saints, but now the Church is much more careful about who they canonize, seeing as the whole world is watching them 24/7.