What is the name of WhatsApp's feature for one-to-many messaging to multiple contacts?

WhatsApp’s feature for one-to-many messaging to multiple contacts is called a Broadcast list.

A Broadcast list allows a sender to distribute the same message to selected contacts without creating a group conversation. Each recipient receives the message as an individual chat, and replies come back privately to the sender. Recipients do not see one another or receive a shared conversation thread.

This makes Broadcast lists useful for announcements, reminders, invitations, and updates intended for several people who do not need to interact with one another. A list can contain up to 256 contacts, and recipients generally need to have the sender’s number saved for the broadcast to be delivered.

Broadcast lists are often confused with Groups, Status, or Channels. Groups are interactive shared conversations, while Status posts are temporary updates viewed by contacts. Channels, introduced in 2023, are a newer public-style broadcasting tool for organizations, creators, and public figures. The traditional contact-based one-to-many feature remains the Broadcast list.