Origin of the name Reid: Transferred use of the surname derived from the Scottish reid (red). The name arose as a nickname for someone with red hair or a red, ruddy complexion.
Riley is a given name for males and females, which first appeared as Raghallach, which was originated on a man who died in the Battle of Clontarf. Its source gives its meaning as "valiant". Though originally a given name, it is more popular and well known as a surname.
