Walter Bruno Kielholz (born 25 February 1951) was chairman of the board of directors and former CEO of Swiss Re.

He joined Credit Suisse in 1986, where he was responsible for client relations with large insurance groups in the multinational services department.

[3] During this period, Swiss Re introduced important new products such as Insurance Linked Securities, which enable risk-transfer to the capital markets.

In recognition of his long-standing work for Swiss Re, the Board nominated Walter Kielholz Honorary Chairman.

He was also a member (president in 2006/2007) of the International Monetary Conference (IMC), an association of the largest banks worldwide, and vice chairman of the board of the Institute of International Finance (IIF), the world's only global association of financial institutions.

In addition, he is a founding member (in the year 2000) and former chairman of the Board of Trustees of Avenir Suisse, a think tank for economic and social issues.

Kielholz enjoys sailing, skiing, tennis, golf, reading, opera, concerts and art.

From June 2002 to May 2021, he was chairman of the Zurich Art Society, which runs the Kunsthaus Zürich museum.