Urs Christian Timotheus Guldimann abbreviated as Tim Guldimann (German: [tɪm ˈɡʊldɪman]; born 19 September 1950) is a Swiss political scientist and former diplomat and politician who previously served on the National Council (Switzerland) for the Social Democratic Party from 2015 to 2018.

[8][9] He had four younger brothers including: Tobias Guldimann, who was formerly Chief Risk Officer at Credit Suisse.

He attended Gymnasium Enge where he completed his Matura and then studied Economics at the University of Zürich graduating with a PhD.

[13] From 1996 to 1999,[13] worked as negotiator for the Organization for Security and Co-operation in Europe in Croatia and Chechnya.

The document, known as the Swiss Memorandum in German, laid out a proposal to begin discussions over a large range of issues in Iran–United States relations.