Her unknown identity prompted tabloid speculation that Rock, 45, who has another daughter, Lola, 7, also with his wife, had fathered the girl out of wedlock.
Tabloids also drew a connection between a 2007 paternity suit filed by a Georgia woman, Kali Bowyer, who claimed Rock was the father of her then-13-year-old son. DNA tests later proved that was not the case.
According to Rock's rep, "The child in the photograph with Chris Rock that appeared in the New York Post is the daughter of a family friend from South Africa whom [his wife] Malaak Compton-Rock met through her charity endeavors over the years. She visits often and when here is a joy to the Rock family."
Rock and his wife met in 1994 and married in 1996.
Next up, Rock will star in the comedies Death At Funeral, due out in April, and Grown Ups, arriving in theaters in June.