"Catalina" can refer to several things, most commonly macOS Catalina (10.15), Apple's major operating system update with new media apps and 64-bit support. It also refers to a popular tourist destination, Santa Catalina Island, off Southern California, known for its conservancy and Mediterranean climate. Other contexts include Catalina as a main character in the Grand Theft Auto video game series, or Catalina, a marketing company specializing in shopper data.