Semir Osmanagić

Semir Osmanagić (born June 1, 1960), also known as Sam Osmanagich, is a Bosnian businessman and author. He is best known for promoting his pseudo-archaeological project in central Bosnia (near the town of Visoko) related to the so-called "Bosnian pyramids". Osmanagić claims that a cluster of natural hills in central Bosnia and Herzegovina are the largest human-made ancient pyramids on Earth. He has conducted extensive marketing about the site and promoted tourism there.

An enthusiast of pyramids, Osmanagić completed a doctorate in social sciences but does not have a science background in any archaeological field. Professional geologists, archaeologists and other scientists have directly refuted his claims about the central Bosnian hills; they have concluded – after direct analysis of the site, its known history, and excavations – that the hills are common natural formations known as flatirons with no signs of human construction.