John A. Johnson

John A. Johnson may refer to:


 * John Johnson (astronomer) (born 1977), Harvard professor
 * John Albert Johnson (1861–1909), Minnesota governor
 * John Alvin Johnson (1915–2005), U.S. lawyer and businessman
 * John A. Johnson (Minnesota politician) (1883–1962), Minnesota state legislator
 * John Anders Johnson (1832–1901), member of the Wisconsin State Assembly
 * Jack Johnson (boxer) (John Arthur Johnson) (1878–1946), American boxer