Caroline Love Goodwin O'Day (June 22, 1869 – January 4, 1943) was an American politician who served four terms in the U.S. House of Representatives from 1935 to 1943.

Her father was a planter residing in Savannah, Georgia, who served in the Oglethorpe Light Infantry of the Confederate States Army.

On April 20, 1901, she married Daniel O'Day, who served as secretary and treasurer of Standard Oil Company.

In 1939 she criticized the Daughters of the American Revolution when they refused to allow Marian Anderson, who was African-American, to perform at the DAR Constitution Hall.

[3] She died on January 4, 1943, the day after leaving Congress after four terms in office.