Charles Milton Hutchinson Sr., AIA was an American architect who practiced primarily in Los Angeles, California during the early-to-mid 20th century. Born in Johnstown, Pennsylvania, Hutchinson studied at the University of Pennsylvania before relocating to California around 1916. He began his career as a draftsman in Los Angeles and established his own practice, Charles M. Hutchinson, Architect, in 1918 with offices in the Hibernian Building. Between 1919-1921, he briefly associated with the prominent firm Walker and Eisen, Architects, though this partnership was short-lived. Hutchinson returned to independent practice in 1921, maintaining offices in various Los Angeles buildings including the Security Building and Central Building. He practiced architecture for nearly four decades until around 1955, later moving to Northern California where he died in Menlo Park in 1969. Hutchinson was married to Emma Lillian Reynolds, a USC graduate, and had a son, Charles Milton Hutchinson Jr., who served in the US Navy and became an engineer.
His work included residential projects in Los Angeles neighborhoods like Hancock Park and Los Feliz, as well as institutional projects such as schools for the Los Angeles Unified School District.