Contacts - Duplicates

• I have experienced the same problem, but I have upgraded multiple computers to Big Sur--so I now have four copies of each contact in my iCloud contacts (on all devices, as well as the iCloud web interface.)
• My initial search took me to If you see duplicate contacts after setting up iCloud Contacts - Apple Support. But the "Before You Begin" section of that site says, "If you see duplicates in Contacts on iCloud.com, visit Apple Support for help." When I went to Apple Support, this looked like the most relevant post, but the only answer was to go back to the page that sent me to Apple Support.

Welcome to Apple Support Communities.

Please see: If you see duplicate contacts after setting up iCloud Contacts - Apple Support.

-Jack

I just logged into my iCloud on my computer and went to my Contacts. Instead of having "All Contacts" selected, I chose "Card". That automatically eliminated all the duplicates.

I have duplicase contacts too after upgrading to Big Sur. And I haven't being able to fix it yet. Have you find a fix? Thanks!

I just logged into my iCloud on my computer and went to my Contacts. Instead of having "All Contacts" selected, I chose "Card". That automatically eliminated all the duplicates

I just fixed mine by loggin to iCloud, Settings, Restore Contacts and selected the last backup before installing Big Sur and I got my contacts corrected. Hope this is helpfull.