Ralph Carey Geer (March 13, 1816 – January 9, 1895) was an American farmer and politician in what became the state of Oregon. A native of Connecticut, he lived in Ohio and Illinois before taking the Oregon Trail west to Oregon where he started a nursery and later raised livestock and grew flax. At times a Republican and later a Democrat, he served in the Oregon House of Representatives and as the clerk for the county. He was related to both Homer Davenport and T. T. Geer.