Charles Garrison Harker (December 2, 1837 – June 27, 1864) was a brigadier general in the Union Army during the American Civil War. He was killed in action at the Battle of Kennesaw Mountain in northern Georgia during the Atlanta Campaign. Fort Harker in Kansas, an active garrison of the United States Army from 1866 to 1872, was named in his honor. The Charles G. Harker School in the Swedesboro-Woolwich School District, New Jersey, is named in his honor.