In one word …. No
Third party antivirus solutions , usually cause issues ( this weekend I had a Mac that would not boot due to the antivirus ) and slow the Mac down.
Mac owners should be aware that in the Security & Privacy tab in System Preferences is a setting below.
This means that unless you change it , only Apps that are Apple approved can be installed which negates the need for an antivirus in most cases.
Also remember to keep your Mac software up to date – up to date software keeps you secure.