Quick answer
Flynn is a boy name.
Meaning and history
From an Irish surname, an Anglicized form of Ó Floinn, which was derived from the given name or byname Flann. A famous bearer of the surname was American actor Errol Flynn (1909-1959). As a given name, it grew in popularity after it was featured as a character in the Disney movie Tangled in 2010.
Notes and context
Usage: english