How to merge duplicate contacts on your iPhone or iPad | Apple Support

If you have more than one contact card with the same first and last name, the Contacts app can merge the duplicate contacts for you.

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[maabdulraouf]

I have more than 200 duplicate contacts, but there is no option to merge them

[miadagan]

My uncle works at apple and I got the air pod 3s today there so good

[Ezequiel_GARAY_]

I Had more than 1500+ duplicate contacts, and Iphone does not show me duplicates to easy merge them. I had that issue because of my old phone data transfer process and it imports more contacts from google drive account.
Please help me 😢