Existed since 1.17, Villager Names is a datapack that adds random names to Villagers!
There are over 30 million names as of 1.21x, so you probably won't find any duplicates for a good while.

📜 Features:

• Randomized Villager Names:
  • As of 1.21x, there are over 30 million names to choose from!
  • Names are randomly assigned to Villagers that don't have one yet.
• Family Names and Bloodlines:
  • All villagers now have a Family Name.
  • New babies are born with one of their parents' Family Names!
  • They can sometimes make their own family as they grow up though.
• Name personalities:
  • Most Villagers you find will have a regular name.
  • Some Villagers want to be known by their Nicknames, which often looks weirder than usual.
  • Some just don't want to show you their names. Fair.
• Special Name Tags: Customize how Villagers are named using Name Tags!
  • Some names starting with "/" offer special abilities.
  • They can give Villagers a new name, set a Nickname, or hide their Name entirely!
• Works well with my other datapacks!
• Works in Multiplayer!
• Made and maintained with lots of care. Hope you enjoyed it!

🤔 It's not working, help!

• If you can't access in-game settings or debug commands, open to LAN and enable Allow Commands!
  • If you're in a Server, you'll need to /op yourself first!
  • Before 1.20.5, this option was called Allow Cheats.
• For any other problems, you can contact me personally here!
  • I'll personally respond to all help requests that's been sent here.
    Reply times may vary - there's just me working on all this, but I'll always help you out when I can.

🎉 Special Thanks:

Special thanks to these awesome people for keeping the lights on:

If you like the effort that goes into making all this, help me keep the lights on so I get to do this more often!

📝 PS:

• Each version was designed and optimized for their respective Minecraft release, so you'll always get the best performance and features possible for the releases you're playing on.
  • I could make builds that supports multiple versions at once, but it also means adding extra stuff only to support game releases that it won't be run on. It just doesn't make sense to me.
• Due to Modrinth's limitations, this version is not the best of what I've got.