| C. A. Pierce | |
| State Senate1: | Arizona |
| District1: | Santa Cruz County |
| Term Start1: | January 1923 |
| Term End1: | December 1924 |
| Predecessor1: | J. L. Schleimer |
| Successor1: | Leslie C. Hardy |
| Nationality: | American |
| Party: | Democrat |
| Profession: | Politician |
Colwell A. Pierce was an American politician from Arizona. He served a single term in the Arizona State Senate during the 6th Arizona State Legislature, holding the seat from Santa Cruz County.[1] He and his wife, Mary, moved to Arizona in 1912, settling near Patagonia. They had two children, a son, Jack, and a daughter, Sallie.[2] From 1914 through 1932 he was a consultant mining engineer in Santa Cruz County. After leaving Arizona, he became the general superintendent of the U. S. Potash company in Carlsbad, New Mexico.[3] Pierce died on October 5, 1955, in El Paso, Texas, where he had been living for four years.[4]