Rođena je u Sisku 1973. godine, živi u Petrinji. Od rane mladosti se bavi likovnim stvaralaštvom. Stručno znanje i zvanje kreativnog slikara stječe 2005.g. kod akademskog slikara i profesora E.R.Tanaya u Zagrebu. Do sada je imala 5 samostalnih izložbi, u Petrinji, Zadru, Sisku, Popovači i Krapinskim toplicama. Sudjelovala je na brojnim likovnim radionicama (oko 40) i skupnim izložbama (oko 50) humanitarnog i donacijskog karaktera.  2010. godine skupno izlaže na slikarskoj izložbi „INTER IMAGO NEW YORK“ u MC Gallery u New Yorku. Osim djela svjetovnog karaktera, autorica je i sakralnih djela, nekoliko oltarnih slika na području Sisačke biskupije, koje je donirala kao pomoć u obnovi ratom stradalih kapelica. Njezini radovi se nalaze u mnogim galerijama i privatnim zbirkama diljem Hrvatske i u inozemstvu.

Andreja Dujnic was born in Sisak, Croatia in 1973. Today she lives in Petrinja, Croatia. She's engaged in painting since her youth. In 2005 she graduated from the Studio Tanay Art School (owned by Mr. E.R.Tanay, the university graduated painter and professor at the Academy of Fine Arts of the Zagreb University), acquiring a professional title of a creative painter. So far she has held five solo exhibitions, first in her hometown Petrinja, second in Sisak, third in Zadar, a beautiful town on the Adriatic coast, fourth in Popovaca and fifth in Krapinske toplice. She participated in many art workshops (about 40) and group exhibitions (over 50) of humanitarian or donating nature. In 2010 she exhibits her paintings in MC GALLERY in New York, at the group exhibition called “INTER IMAGO NEW YORK”, together with 14 other artists from Southeast Europe, mainly Croatia and Montenegro. Andreja is an author of both secular and religious paintings. She donated several altarpieces to help rebuild chapels on the territory of recently reestablished Diocese of Sisak. Her works can be found in many galleries and private collections throughout Croatia and abroad.