Teach Siri Correct Pronunciation
Whether you have a name that's hard to say or not, you can still teach Siri the right way to pronounce names. To get to this panel, just say someone's name while using Siri; then when she responds, speak back and say, "That's not how you pronounce (whatever name you said)." Siri will then ask how to correctly say it and will present you with three options to choose from. Pick one and you're done!