Blalock

Blalock is a surname of English origin. It is derived from the Old English words “bla” meaning “black” and “lacu” meaning “play, sport.” The name was likely given to someone with a dark complexion or who enjoyed sports. Notable individuals with the surname include surgeon Alfred Blalock, who pioneered heart surgery, and actress Mary Lynn Blalock. Today, the name can be found primarily in the United States, with the highest concentration in Georgia.