English - Proper Noun
- A surnameâ of Irish origin, variant of Reilly.
- An English habitational surnameâ from Ryley in Lancashire, from Old English ryge (âryeâ) +leah (âclearing, meadowâ).
- A manufacurer of British motorcars (1907-1969) named after William Riley Jr.
- A male given name, transferred use of the surnames since the nineteenth century.
- A female given name used since the 1990s.