Small brook or stream
Rilla is most often considered a shortened form of Marilla, though it can also function as a diminutive of names like Cyrilla or Averilla. In a Germanic context, it is associated with the word for a small brook or stream. It gained literary recognition through the works of L.M. Montgomery in the early 20th century.
About 7 girls were named Rilla in 2025.
US births per 5-year period, 1990–present (SSA data).
The youngest daughter of Anne Shirley and Gilbert Blythe · Rilla of Ingleside
Australian designer and illustrator
American novelist and short story writer