Magdalena Martullo (German pronunciation: [maɡdaˈleːna marˈtullo];Italian pronunciation: [maɡdaˈleːna marˈtullo]; née Blocher; born 13 August 1969) stylized as Magdalena Martullo-Blocher[1] is a Swiss businesswoman, politician (SVP), billionaire and the daughter of former Swiss Federal Councillor Christoph Blocher.

Martullo-Blocher was born 13 August 1969 in Männedorf, Zürich, Switzerland, the eldest of four children, to Christoph Blocher (b.

Her father is a former member of the Federal Council of Switzerland for the Swiss People's Party, who acquired EMS-Chemie in Domat/Ems in 1983 and turned it into a conglomerate.

According to the Bloomberg Billionaires Index, she ranked 255th on the list of the world's richest people, with an estimated wealth of $9.76 billion.

[11] Martello-Blocher is a firm defender of a Swiss neutrality[12] and in view to the Russian Ukrainian conflict, she lamented that Switzerland joined the EU sanctions regime against Russia.