Eliza Tibbets (born Eliza Maria Lovell; 1823–1898) was among early American settlers and founders of Riverside, California; she was an activist in Washington, D.C., for progressive social causes, including freedmen's rights and universal suffrage before going to the West Coast. A spiritualist, she led seances in Riverside. She became known for successfully growing the first two hybrid Washington navel orange trees in California.