Baily is an uncommon given name of Irish origin, derived from the Gaelic surname Ó Baoille, which means 'descendant of Bailey'. It was initially used as a surname before evolving into a given name in some cases. The name has been sparsely used throughout history but has not gained significant popularity in recent times.
The name Baily peaked in popularity between 1996 and 1997 with a combined total of 100 births during these two years. However, there has been a steady decline in the number of babies named Baily since then, with only 6 births recorded in 2008. The overall total of births for the name Baily from 1994 to 2008 is 417.