Katharina Habsburg-Lothringen-Kyburg (née Katharina Isabel Gräfin von Hardenberg; born 21 April 1968), known professionally by her stage name Tita von Hardenberg, is a German noblewoman, television journalist, presenter and producer.

Countess Katharina Isabel was born as daughter of the banker Count Andreas von Hardenberg (b.

In 1997, von Hardenberg, together with Stefan Mathieu and Michael Khano, founded the company Kobalt Productions Film und Fernseh GmbH.

In 2011, she developed the weekly culture programme zdf.kulturpalast hosted by Nina Sonnenberg and Pegah Ferydoni on ZDFkultur.

On 20 October 2012, von Hardenberg hosted the festive concert for the 100th anniversary of the Deutsche Oper Berlin, which led to controversial reactions.

In June 2018, Hardenberg was elected to the board of trustees of the children's relief organization "Plan international Deutschland ev" .