How to remove old Speaker from Account and Google Assistant

I have the same issue.  I updated my amps but still see the old ones in Google Home.

I’m in the exact same situation. I’ve moved the old ones to a room name I don’t use so there’s less confusion. 

Also having the same issue; surprised there's no way to remove the device and meanwhile voice commands don't work in the room with the old device ghosted in there...

I also have the same problem, old Play:5 still showing up in Google Home. Seemingly no way to remove it.

+1 from me. It would be nice to be able to (automatically, or manually)  remove, archive, or hide, devices held in a users online account profile after say a period three months of continuous connection-inactivity, as some devices are not always sold on, but maybe recycled, or faulty/discarded etc.

I have an old Sonos Dock for example still showing in my profile that has long-since bitten the dust and was recycled when it was obsoleted. No chance that will ever be registered again. 

A factory reset and re-registration of a Product could perhaps restore a device to a users account, in any event, so that all is then still not lost, even after the three month period has passed.

What I ended up doing was creating a new "home" in Google home called a" unused" and moved the device to that location. Now it's just my smart device graveyard. Similar, actually, to what I ended up doing for devices I temporarily don't need (for some holiday smart plugs I have an "unused" room, but that didn't cut it for the Sonos device to not be found).

I had heaps of similarly frustrating issues.  I needed to set up and reorganise a whole google nest network with 9 wifi points and heaps of rooms.  Trying to keep everything organized was important, but made difficult by the old Sonos speakers that I could not remove.  The old devices were also stopping me from setting up new Sonos speakers with Google Assiatnt.  In the end I was able to remove the Sonos service from the Google Assistant App.  This in turn removed all Sonos devices from the Google Home App (HOORAH!!!!).  I then added the Google Assistant back to my new Sonos setup, which caused Google Home to do a whole new search for Sonos devices and only added the ones that it found.

Same Problem here. 

Thanks for this idea, was hoping it will work. I tested it. Unfortunately it didn’t work in my case. I have all my Sonos speakers twice in the Google Home app. There is always one that I can delete, the other not (marked yellow and renamed to be able to differentiate them.)