Demelza

A punchy modern Cornish name derived from a place name, which is of disputed origin. It is sometimes said to derive from a rare Welsh name, Maeldaf, plus dinas, the Cornish for "fort". Another theory is that it comes from Cornish ty "house" plus malsai "eel" – likely a reference to Cornwall's fishing trade.

The given name began to be used in the UK in the 1950s thanks to the serialization on British TV of Graham's novels, whose heroine was named Demelza. In the series, her name is said to mean "thy sweetness", which could be an alternative – if unlikely to be etymologically accurate – meaning for parents who are put off by the eel connection.

Pronounced duh-MEL-zuh.

As of October 2026, Demelza ranked #13637 in US births in 2025 SSA, peaked at #8808 in 1978.