Install Skype for Business (Mac)
This article applies to: Skype for Business (Mac)
Office 2016 includes Skype for Business, so if you have Office 2016 installed, you probably already have Skype.
If you are determined to self-install, you'll find the stand-alone installers in the Cornell Microsoft Office Licensing articles.
Microsoft recommends that you completely uninstall Lync for Mac before installing Skype.
Be sure to read about Known Issues with Skype for Business (Mac).