Charles Henry Larkin Sr., (May 12, 1810 – August 16, 1894) was an American merchant, real estate developer, and Wisconsin pioneer.
In 1848 he opened a store at the foot of East Water Street in the City of Milwaukee and dealt extensively in produce, livestock, and so forth.
He also invested in real estate, and after a few years retired from other business and gave his attention chiefly to his real-estate interests.
Feeling too old to engage in warfare, instead he assisted his son, Courtland P. Larkin, to enlist a company of the 38th Wisconsin Volunteer Infantry Regiment.
Beginning in 1866, he was a Democratic member of the Wisconsin State Senate from the Sixth District (the 3rd, 4th, 5th and 8th Wards of the City of Milwaukee, and the Towns of Milwaukee, Greenfield, Lake, and Oak Creek), succeeding fellow Democrat Hugh Reynolds; he was assigned to the standing committee on banks and banking,[4] but switched to that on railroads for the 1868 and 1869 sessions.