Costa Georgiadis (born 1 January 1964) is an Australian author, landscape architect, environmental educator and television presenter.

Georgiadis was born in Sydney to parents Stan and Anne Georgardis, and grew up in North Bondi on the same street as his grandparents and uncle.

[1] His paternal grandfather, Constantine Georgiadis was born in Thessaloniki, and arrived in Australia in 1927 via South America.

[10][11][12] In 2021, Georgiadis was the host of a six part podcast called Gardening Buds, which is featured in the ABC Kids Listen app.

[15][16] In 2024, Georgiadis was the subject chosen for ABC Radio Brisbane's annual art competition The Bradley.