If I delete Notes in iCloud will they be deleted on my device too

Greetings bikerbob51,

I love using Notes with my iCloud connected devices, and I can tell you about this.

Modifying or deleting a Note on one device that uses iCloud Notes will indeed modify or delete the same Note on other devices signed into the same Apple ID.

Here are some additional Notes tips:

• Use Notes on your iPhone, iPad, and iPod touch

Cheers.