Charles John Hexamer, Ph.D. (May 9, 1862 - October 15, 1921) was the president of the National German-American Alliance from 1901 to 1917.

[1] He was born on May 9, 1862, in Philadelphia, Pennsylvania, to Mary and Ernst Emil Julius Ferdinand Hexamer.

He married Annie Josephine Haeuptner in 1890 in Philadelphia.

[1] In 1901 Hexamer co-founded the National German-American Alliance, where he was its first president until 1917.

[1] He was buried in Grove Church Cemetery in North Bergen, New Jersey.