What is the name of first black GI Joe doll?

The first Black GI Joe doll was named "Rock 'n Roll" and was introduced in 1968. He was part of the "Action Soldier" line, which was a predecessor to the modern GI Joe line.

It's important to note that while "Rock 'n Roll" was the first Black GI Joe doll, the line also featured dolls of other ethnicities in the late 1960s. However, "Rock 'n Roll" stands out as a significant figure in the history of toys and racial representation.