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Gender: F Origin of Trillian: Literary name

Douglas Adams invented this name for a character (aka Tricia) in Hitchhiker's Guide to the Galaxy. It has a nice, trilly sound, and is accessible via its kinship with Gillian/Jillian.

Famous People Named Trillian

Pop Culture References for the name Trillian

A trillion, the number, pronounced the same way as Trillian. Quite a few people would get them confused.