Ludie, often shortened from Louise, is of French origin and means "renowned warrior" or "famous combat". It was introduced to England by the Normans during the 11th century but has since become more commonly used in other parts of Europe. Ludie's popularity peaked in the United States during the late 19th and early 20th centuries, though it remains relatively uncommon today. The name Ludie is often associated with simplicity and straightforwardness, reflecting its direct derivation from Louise. It has been borne by several notable individuals throughout history, including French novelist Ludovic Halévy and American actress Ludie Klark.
"The name Ludie was quite popular between 1892 and 1933, with the most births occurring in 1919 (15) and the least in some years like 1892, 1911, and 1940 (all with 5). After 1933, its popularity significantly decreased, only reaching double digits once more in 1947 (11), and often falling to 5 or fewer births per year."