Mallery is a distinctive and uncommon given name, derived from the Irish surname Mallery, which originated as an Anglicized form of the Gaelic name Ó Maoil Bhéarra, meaning 'descendant of the devotee of St. Barr'. This name is believed to have been brought to England by Norman families who settled there after the Norman Conquest in 1066. However, its usage as a given name appears to be more prevalent in North America than in other parts of the world. As a given name, Mallery can be used for both boys and girls, though it is statistically more common for females. It adds a touch of uniqueness while still being recognizable due to its association with the familiar surname form.
The name Mallery experienced significant fluctuations in popularity from 1983 to 2014, with a peak of 38 births in 1985 and a low of 6 births in 2012. Over the entire period, there were a total of 481 babies named Mallery.