Kathleen is the early Irish import version that came between Katherine and Kaitlin, and which hasn't been used in so long it's almost beginning to sound fresh again. It was a surprise pick by one of the hip Dixie Chicks, Martie Maguire. But on the popularity list, it's in free fall, plummeting nearly 50 places a year.
From the eighteenth century, Kathleen Ni Houlihan appears in Irish songs as a symbol of Ireland, representing its struggle for independence.
Kathy Griffin and Kate Walsh were born Kathleen, and it's J.K. Rowling's middle name. JFK's sister Kathleen was known as Kick.