Klaudia Tanner (née Wallner, born 2 May 1970) is an Austrian politician of the People's Party (ÖVP) who has been serving as minister of defense in the governments of Chancellors Sebastian Kurz, Alexander Schallenberg and Karl Nehammer since January 2020.

[1][2] From 2011 to 2020, she worked as the General Manager of Austria's political farmers' association.

Already in the negotiations on a coalition government under Chancellor Sebastian Kurz following the 2017 elections, Tanner was considered as potential cabinet minister.

[3] After the 2019 elections, Tanner was appointed Minister of Defense by Kurz in January 2020, making her the first woman to hold the position.

[4][5] Under Tanner's leadership, Austria mobilized its military reservists for the first time since World War Two, asking them to fight the COVID-19 pandemic by helping with food supplies, medical support and police operations.