What is a proper noun for premier?

There isn't a single, universally accepted proper noun for "premier." It depends on the context and the specific premier you're referring to.

Here are some examples:

Specific Person:

* Justin Trudeau (Canadian Prime Minister)

* Anthony Albanese (Australian Prime Minister)

* Liz Truss (former British Prime Minister)

Specific Position:

* The Prime Minister (if referring to a specific country, you can add the country name after, e.g., "The Prime Minister of Canada")

* The Premier (if referring to a specific region, you can add the region's name after, e.g., "The Premier of Alberta")

General Term:

* Premier (when used as a general title, it's not usually capitalized)

So, the best way to decide on a proper noun is to consider the specific situation and who you're referring to.