Dhani Irwanto
is a hydro civil engineer and better known as a planner and an expert in hydrology, hydraulic structures, dams and hydropower, the profession involving inter-disciplinary that has lived for more than three decades. Apart from his professional life, he is also a researcher of the history of nations and civilizations, encouraged by the environment, social life, culture and traditions in the region where he grew up. His strong present in the internet has made him well known for his ideas on pre-history and ancient civilizations.

Dhani Irwanto is the author of the books Atlantis: The Lost City is in Java Sea (2015) and Atlantis: Kota yang Hilang Ada di Laut Jawa (2016).

Dhani Irwanto was born in Yogyakarta, Indonesia in 1962. He is currently an owner and director of a consulting firm located in Bogor, West Java, Indonesia.