How come my voice memo app at the top has somebody else’s address on my street?

Oh... perhaps you enabled your Location in Settings>VoiceMemo... last option.

See this:

Your recording is saved with the name New Recording or the name of your location, if Turn on Location Services is turned on in Settings>Privacy. To change the name, tap the recording, then tap the name and type a new one.

Extracted from:--> Make a recording in Voice Memos on iPhone - Apple Support

Regards

Giulio

With the voice memos app, it has the ability to automatically name the audio clip based on your current estimated location. You can disable this setting by heading into settings > voice memo > (then disable) Location-based Naming .

An address? At the top? When are you seeing it? While recording? After recording? I have no addresses at the top.

Can you post a screenshot, so that we can better understand your question?

Giulio