Dušan Grabrijan (1899 – 1952) is a Slovenian and Bosnian architect, architectural theorist and professor.

In 1930, attracted by Sarajevo chram, Grabrijan moved to Sarajevo and spent the next 20 years on studying and documenting construction and architectural basis of Sarajevo and Bosnia and Heregovina in general. During the thirties Grabrijan was a professor at Secondary Technical School in Sarajevo and issued a series of scientific and research workd.

Grabrijan was a first who was studying oriental house, adapted to the demand of Bosnian culture, revealed a number of principles which are proclaimed by the piooners of modern architecture as basic exhibitis of contemporary architecture, applied in the residential unit.

Some of these exhibits were polyvalent space, removal or clearance of space excessed with furniture, spatial overlap, overlapping exterior and interior, lots of light, a village in the greenery and nature as an element of composition, and hose that on the outside appears as cubistic plastics.