Get directions by nickname in Siri
Unfortunately, if you asking for this kind of request to Siri directly Siri gives you full name , even you have their nickname.
Shortcuts on iOS and iPadOS able to do that. Just create a new shortcut: add Map app -&gt; add address... Name this short cuts as &quot;directions to someone’s address&quot;.
After saving, ask Siri &quot;directions to someone’s address&quot;,that's it.
Hope this helps, stay safe.