Plural proper nouns ending in consonant-y

as far as I'm familiar with the proper nouns, you don't make any inflectional changes when making plural form.
with common nouns, as you know, y changes into ie if a consonant precedes y.
but that rule doesn't stand for proper n.

Bill's first instinct:
I was taught that pluralizing all forms of nouns is the same. In this context, the correct form is Grizzlies.

This is another issue though that has changed since I was little. People now want to say Grizzlys, which to me is incorrect. It seems that the rule for families -- ie, we went out with the Marleys last weekend-- is something people want to put into situations of teams and etc. I'm against it but it seems to be up for grabs.

Do not change the spelling of proper nouns, hence Grizzlys.
--English major and TA

Memphis Grizzlies (first Vancouver Grizzlies)... of course the proper plural is "grizzly bears"

The correct plural of "grizzly" is "grizzlies."

The rule for plural nouns ending in "y" is this:

If the "y" is preceded by a vowel the plural is formed by adding an "s."

If the "y" is preceded by a consonant the plural is formed by omitting the "y" and substituting "ies."

Note that neither "grizzly bear" nor "grizzly" (in the sense of a bear rather than as an adjective) are proper nouns. A proper noun is one that designates a particular being or thing. "Grizzly bears" designates a type of bear, as does "grizzly," not a particular bear. Once you have adopted the word as a name it becomes a proper noun, of course, but it is taken from a common noun that has already been made plural.

thanx nobody else could help me?

pony ponies
city
cities

Is there an an exception to the rule of taking off the y and adding ies to the end of a word.

Many thanks
Maryary

Pony and city are not proper nouns.

How do you pluralize a name ending in y?

Ex: There were three different Andys in the room? Should an apostrophe be used?

I think it's Grizzlies

'Pony' makes 'ponies'.
'Donkey' makes 'donkeys'.
But I think it's 'grizzlies' anyway.

That great hunter Teddy Roosevelt - after whom the teddy bear was named - spelled the word 'grisly'. I don't think there was any semantic reason to do so.
His memoir 'Ranch Life & the Hunting Trail', illustrated by Remington, is a wonderful read.