Delius \d(e)-lius\ as a boy's name is of Greek origin, and the meaning of Delius is "from Delos". Delos is a tiny Greek island that was sacred to the ancient Greeks, who believed that Apollo and Artemis had been born there.

Delius has 3 variant forms: Deli, Delios and Delos.

Baby names that sound like Delius are Delles, Dallas, Dallis and Dalles.