Any name of a person or place ... any noun that you would write with a capital letter ... is a proper noun.
Write down the names of your 10 best friends, the city and street where you live, your 3 favorite pets, and your own name, and you'll have a fine list of 16 proper nouns.
A proper noun is the actual name of a person,place,thing, or idea. So the names of people, countries, cities, buildings, streets, companies,etc, are proper nouns.
An example list: Kate New york The University of Santa Barbara Halloween
