Elena Maria Catargiu-Obrenović (Serbian Cyrillic: Елена Марија Катарџи-Обреновић; 1831 – 16 July 1876), known in Serbia as Marija Obrenović, was by birth a Moldavian and United Principalities boyaress.

She was the daughter of Boyar Constantin Catargiu (1800–1871), a great landowner and Moldavian separatist and Romanian noblewoman Smaranda Balș (1811–1886), whose family dubiously claimed descent from the medieval House of Balšić.

Her younger son Dimitrie committed suicide in 1888 and Alexandru died the following year.

After the fall of Cuza, his whole family was exiled, as was Elena Maria, who settled in Germany and became lady in waiting to Empress Augusta.

[2] In 1876, after finding out she had cancer, she committed suicide in Dresden and was buried in the Catargiu family mausoleum, Iasi.