Siri is no one’s favorite virtual assistant, and if it’s also always pronouncing your name wrong, it’s doing little to endear itself to you. As recently as iOS 14, you could let Siri know its pronunciation was incorrect, and tell it the correct way to say your (or another contact’s) name. This method has been removed…
Source: LifeHacker – The Least Siri Can Do Is Pronounce Your Name Correctly