Charles Dayon Robinson (October 22, 1822 – September 25, 1886) was an American businessman, Democratic politician, and Wisconsin pioneer.

Two years later, in November 1851, he was elected as the Democratic Party candidate for Wisconsin Secretary of State.

After leaving public office, he entered a partnership in the lumber business with future United States Senator Timothy O. Howe and Charles E. Tyler.

In the summer of 1861, after the outbreak of the American Civil War, Robinson enlisted for service with the Union Army.

[3] In 1864, after his resignation from the Army, Robinson sent a letter to President Abraham Lincoln, delivered via Governor of Wisconsin Alexander Randall.

[3] He was defeated in the November general election by incumbent Republican Governor Lucius Fairchild, who earned his third term.

During his one-year term as Mayor in 1866, he proposed the construction of the Green Bay & Lake Pepin Railway.

Robinson married Sarah Wilcox on December 30, 1846, just a few months after his arrival in the Wisconsin Territory.