Fernitz-Mellach is since 2015 a municipality with 4,654 residents (as of 1 January 2016) in Styria, Austria.

It lies in the south of Graz-Umgebung District.

The municipality was founded as part of the Styria municipal structural reform,[2] at the end of 2014, by merging the former towns Fernitz and Mellach.

[3] Fernitz-Mellach is located in the south part of the Graz-Umgebung District, about 10 kilometres (6.2 mi) south of Graz.

The municipality territory includes the following five sections (population as of 1 January 2015[4]): and consists of the Katastralgemeinden Fernitz, Gnaning and Mellach.