Get SQL Server AG Listener Name via Powershell

AGListener.ps1

# Import SQL Server module
Import-Module "SQLPS" -DisableNameChecking

# Variables
$ServerName = "YourServerName"  # Enter your server name here
$Server = New-Object Microsoft.SqlServer.Management.Smo.Server $ServerName

# Get the availability groups
$AvailabilityGroups = $Server.AvailabilityGroups

# Print the names of the Availability Group Listeners
foreach($AG in $AvailabilityGroups)
{
    foreach($Listener in $AG.AvailabilityGroupListeners)
    {
        Write-Output $Listener.Name
    }
}