You can change the name Alexa calls you in the Amazon Alexa app.
1. Open the Amazon Alexa app.
2. Go to the bottom Communicate tab.
3. Tap the symbol at the top right (of the two people) to get to Contacts.
4. Tap the very first contact. Then tap the Edit button at the top right.
5. Edit the first and last name of the contact to what you want.
6. Finally, tap Save at the top right and exit.