What is the name of Champagne cocktail made with peaches?

There isn't a specific, widely recognized name for a Champagne cocktail made with peaches. However, you could call it:

* Peach Champagne Cocktail - This is a simple and straightforward name that clearly indicates the main ingredients.

* Peach Bellini - This is a variation on the classic Bellini, which is traditionally made with peach purée and Prosecco.

* Peach Royale - This name suggests a celebratory drink, similar to the classic Kir Royale, which is made with crème de cassis and Champagne.

You can also get creative and come up with your own unique name that reflects the specific flavors and ingredients of your cocktail.

For example, if you are using fresh peaches, you could call it:

* Fresh Peach Fizz

* Summer Peach Sparkle

* Peachy Keen

Ultimately, the name you choose is up to you!