BulkRemove-AzureADGroup.ps1

<#

CSV FORMAT

+------------+--------------+--------------+
| Group Name | Group Owner1 | Group Owner2 |
+------------+--------------+--------------+
| group1     | user@domain  | user@domain  |
| group2     | user@domain  | user@domain  |
| group3     | user@domain  | user@domain  |
+------------+--------------+--------------+

#>

$path = 'C:\'
$filename = 'group_sample.csv'
cd $path

import-csv $filename | %{
    Write-Host
    Write-Host "removing $($_."Group Name")... " -NoNewline
    $group = Get-AzureADGroup -Filter "DisplayName eq '$($_."Group Name")'"
    
    if ($group)
    {
        try
        {
            Remove-AzureADGroup -ObjectId $group.ObjectId
            write-host "successful" -ForegroundColor Green
        }
        catch
        {
            write-host "unsuccessful" -ForegroundColor Red
            write-host $_ -ForegroundColor Red
        }
    }
    else
    {
        write-host "not found" -ForegroundColor Yellow
    }

    $csvItem = $_
}