My name is Sheridan and I am a female although I have met men with this name too. To my understanding it is an Irish name. The Male version means 'Wild one or Wild Savage', while the female version means 'Lively Spirited'. I love my name.
My daughter's name is Sheridan. I was under the impression from my research on the name that it was a unisex name of Irish origin and means "wild one". First heard the name on passions as well.