What do you call a waitress in a bar?

Waiting staff (British English), waitstaff (North American English), waiters (male)/waitresses (female) or servers (North American English), are those who work at a restaurant or a bar and sometimes in private homes, attending to customers by supplying them with food and drink as requested.

Is it bad to say waitress?

It seems that many people actually thought that the words waiter and waitress were deemed insulting or demeaning to servers. However, it is perfectly fine to refer to a female server as waiter, and if you do, and one gets offended, you can explain to her what you have read here!

What is the difference between a server and a waiter?

As nouns the difference between waitress and server is that waitress is a female attendant who serves customers in a restaurant, , or similar while server is one who serves; a waitress or waiter.