Slow down, everyone. You're moving too fast.

Jack Johnson may refer to (ordered by date of birth):
Jack Johnson (posseman) (c. 1887) one of Wyatt Earp's possemen during his "vendetta ride"
Jack Johnson (boxer) (1878–1946) first African-American heavyweight boxing world champion
Jack Johnson (film) a 1970 documentary about the boxer

Jack Johnson (American football) (1909–1978) tackle for the Detroit Lions
Jack Johnson (footballer) (1919–1975)
Jack Johnson (Canadian politician) (1930-2009)
Albert Ariel Bedwin Johnson (1930s) aka "Jack" Johnson tennis player
Big Jack Johnson (1940–2011) blues musician
Jack B.