|Portrayed by Michael J. Fox|
|Significant Others:||Simone Canning (wife)|
|First appearance:||"Poisoned Pill"|
|Latest appearance:||"Boom De Ya Dah"|
Louis Canning is an attorney from New York with his own law firm, Canning & Meyers. He suffers from tardive dyskinesia, a condition which he uses to his own advantage in court.
He squared Alicia Florrick on various occasions. Canning has been known to use trickery in his cases. Shortly after buying the late Jonas Stern's firm, he offered Alicia a job in his Chicago firm, with a full partnership, which she rejected.