No, Martin Lawrence is not Ludacris' brother.
Ludacris was born Christopher Brian Bridges in Champaign, Illinois, on September 11, 1977. He's the only child of college students Roberta and Wayne.
As per IMDb, he's the cousin of singer Monica and Katt Williams. He's also a second cousin, once removed, of comedian Richard Pryor. Ludacris's maternal great-great-grandparents, William A. Craig and Nancy, were also Pryor's great-grandparents.
Martin Lawrence on the other hand was born on April 16, 2024 in Frankfurt, Germany. Lawrence's father served in the U.S. military and left the family when Martin was 8 years old. His siblings are Rae Proctor, Ursula Lawrence and Robert Lawrence. Rae is his personal assistant.
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