Hans Robert Hiegel (born 1954) is a German architect.
Important articles include Werkheft04 (ISBN 3-923222-03-3), and by Thilo Hilpert in the Frankfurt Lounge, first published in the Japanese architectural journal A+U, Tokyo.
His teaching locations include the AA, the HfG Karlsruhe and the Bezalel Academy, Jerusalem.
In 1983, he designed the project Campanile in Frankfurt am Main, which turned out to be most influential on the Messeturm.
"Oase" is the name of his prizewinning design for a Kindergarten near Baden-Baden which continues his quest for classical positions in architectural language.