Malley is an English surname and given name, derived from the Irish Gaelic "Ó Maolalaí," which means "descendant of Maolalaí." Maolalaí was a personal name meaning "servant of St. Lawrence." The name has been anglicized over time to Malley and is often used as a given name today. It gained popularity in the United States during the mid-20th century, peaking in usage around the 1960s. However, it remains relatively uncommon compared to other names.
The name Malley experienced fluctuations in popularity over time, with the highest number of births occurring in 2010 (17 births) and the lowest in several years (6 births).