Louisa Thomas (born 1981) is an American writer and sports journalist.

[1] She graduated from Harvard University summa cum laude with a degree in English in 2004.

Her work has appeared in The New York Times, The Wall Street Journal, Vogue, and The Paris Review.

Thomas has published two books: 2017's Louisa: The Extraordinary Life of Mrs. Adams, a biography of First Lady Louisa Adams, and 2011's Conscience: Two Soldiers, Two Pacifists, One Family—a Test of Will and Faith in World War I, about the moral conflicts her family endured during World War I and focusing on her pacifist great-grandfather, Norman Thomas.

[4] Urschel's autobiography, Mind and Matter: A Life in Math and Football, was co-written by Thomas and published in 2019.