The name Rylie is of Irish origins and it is a great name for a boy or a girl, as it is a gender-neutral name. It is also an Americanised variant of the name Riley. The origin of this name is taken from the Old Irish name Raghallaigh, which in turn is taken from the Old Gaelic name Raghalach, meaning 'brave'. As such, the meaning of Rylie is 'brave one' or 'courageous'. There have been a number of famous personalities with this name, such as the American author Riley Martin. He is famous for his novel 'The Coming Of Tan', which talks about his life growing up and his supposed alien encounter.