CR9 may refer to: CR9, a postcode district in the CR postcode area Cristiano Ronaldo, Portuguese footballer who is currently playing at Al Nassr FC, referencing his first season at Real Madrid. The CRJ-900, a regional airliner based on the successful Bombardier CRJ200 County Route 9; see List of highways numbered 9 Serangoon North MRT station, Singapore, MRT station code