Peter Siegenthaler
Peter Siegenthaler is the name of:
- Peter Siegenthaler (politician, 1940) (* 1940), Swiss politician (SVP), Government Councilor of the Canton of Berne 1986–1994
- Peter Siegenthaler (* 1945), Swiss actor and radio play speaker, see Pierre Siegenthaler
- Peter Siegenthaler (civil servant) (* 1948), Swiss civil servant, director of the Federal Finance Administration 2000–2010
- Peter Siegenthaler (politician, 1962) (* 1962), Swiss politician (SP), Grand Councilor of the Canton of Bern