Marly is a unisex given name of French origin, meaning 'from the marshes'. It is derived from the French word 'marais', which refers to low-lying wetlands. This name has been used in France since the Middle Ages and was popularized in English-speaking countries through its association with several notable figures, such as the French Romantic poet Alfred de Musset's novel "Marly," and the American singer-songwriter Marly Music.
The name Marly experienced a significant surge in popularity between the late 1970s and early 1990s, with the highest number of births occurring in 1990 (30 births) and 1992 (34 births). However, it appears that its usage has since declined, with fewer than 50 births recorded each year from 2007 onwards. The most recent data shows a total of 31 births in 2022 and 26 births in 2023, indicating a continued decrease in the popularity of the name Marly.