The short answer
No. Your data. Shrink it from its app; don’t delete the folder.
What is it?
The text-to-speech voice Siri uses to answer you, downloaded in the language and variety you chose. It is stored in a protected system folder and managed by macOS.
Voices used by Siri. macOS manages them; they cannot be removed while Siri is on.
What happens if you delete it?
While Siri is on, macOS keeps the selected voice and downloads it again if it is missing.
How to remove it properly
Do not delete it by hand. To change it or stop using it, go to System Settings › Apple Intelligence & Siri (Siri on Macs without Apple Intelligence) and choose another voice or turn Siri off; macOS manages unused voice assets on its own schedule.
Don’t remove it by hand; macOS manages it.
How MoreRoom helps
MoreRoom recognises this as your data and never suggests deleting it. It shows how much space it takes, so you can shrink it from its own app.
Frequently asked questions
Can I delete Siri voice files on my Mac?
No. Your data. Shrink it from its app; don’t delete the folder. While Siri is on, macOS keeps the selected voice and downloads it again if it is missing.
Will Siri voice come back after I delete it?
Yes. While Siri is on, macOS keeps the selected voice and downloads it again if it is missing.
How do I remove Siri voice properly?
Do not delete it by hand. To change it or stop using it, go to System Settings › Apple Intelligence & Siri (Siri on Macs without Apple Intelligence) and choose another voice or turn Siri off; macOS manages unused voice assets on its own schedule.