Dragutin Inkiostri Medenjak (Serbian Cyrillic: ???????? ????????? ???????; 1866–1942) was a Serbian painter, collector of folk ornaments and handicrafts, and is considered the first interior designer in Serbia.
In 1912, he was put in charge of designing the interior of the House of Vuk's Foundation.He was born in Split as Carlo Inchiostri.
After settling down in Belgrade, he changed his name to Dragutin and added his mother's surname.
Following studies in Florence, he traveled through Serbia and the rest of Yugoslavia.
Inkiostri Medenjak wrote his chief work Moja teorija o dekorativnoj srpskoj umetnosti i njenoj primeni in 1925.