Trillian may refer to: * Trillian (character), a fictional character in ''The Hitchhiker's Guide to the Galaxy'' *

Trillian (software) Trillian is a proprietary software, proprietary Multiprotocol instant messaging application, multiprotocol instant messaging application created by Cerulean Studios. It is currently available for Microsoft Windows, macOS, Linux, Android (operati ...

, an instant messaging application * Project Trillian, an effort to port the Linux kernel to the Itanium processor

See also