Gordana as a name was made relatively popular in Croatia during the 30s and 40s, due to the book series "Gordana Queen of Croats", by author Marija Jurić Zagorka. Currently it is out of fashion, but will most likely soon come back in vogue, as many other 'granny' names are coming back. In Croatia, the male version of this name, Gordan, is vanishingly rare.
Gordana Vunjak-Novakovic (Serbian Cyrillic: Гордана Вуњак Новаковић) is a Serbian American biomedical engineer. She is a university professor at Columbia University, as well as a Mikati Foundation professor of Biomedical Engineering and Medical Sciences.
Gordana Kuić (Serbian Cyrillic: Гордана Куић, pronounced [ɡǒrdana kǔːit͜ɕ]; born 29 August 1942) is a Serbian novelist. She is the winner of numerous literature awards in the countries that made up former Yugoslavia.
Gordana Suša (born 2 February 1946, in Belgrade) is a Serbian journalist. Currently she writes a weekly Saturday column for the Blic daily newspaper and since 2010 sits on the board of the Serbian Broadcasting Agency (RRA), the country's electronic media regulatory body.
Seeing as gordo/gorda means "fat" in Spanish, this name immediately makes me think of a very fat person! It also looks like a forced feminisation of a solidly male-only name.
In Croatia, the male version of this name, Gordan, is vanishingly rare.