Louisa Susannah Cheves McCord (1810-1879), was a United States author from South Carolina.
She was born in Charleston to Langdon Cheves and given a largely conventional education for an upper class female in Southern Antebellum society. However, her father did also allow her to learn mathematics from her brother's teacher and study politics. In 1840 she married the lawyer David James McCord (d. 1855) and spent her married life managing her Lang Syne Plantation outside Fort Motte in South Carolina. She was the mother of captain Langdon Cheves McCord.
After the death of her spouse, she settled in Columbia. During the American Civil War, she was president in the Soldiers Relief Association and active in the Ladies Clothing Association.