Previous speakers of St Peter's Public Lectures programme include:
2019
- Alex Bellos
- Gavin Esler
- Carol Drinkwater
- Chris Mullin
- Tessa Dunlop
- Kate Williams
- Alan Johnson
- Kate Mosse
- Joanna Trollope
- Liz Lochhead and Steve Kettley
- Professor Joseph Silk
- Professor Emily Cross
- Professor Tom McLeish: The Poetry and Music of Science
- Professor Jacquie McGlade: Creating a Prosperous Future for All
- Chris Ryan: Black Ops
2018
- Dr David Edwards
- Professor Mark Pagel
- Greg Wise
- Rosa Prince
- Professor Martin Hendry
- Dr Marina Petri
- Dr Nessa Carey
- Anthony Clifford Grayling
- Dr Lindsey Fitzharris
- Professor Phil Manning
- Johnny Ball
- Baroness Sayeeda Warsi
- Guy Bass
- Sir Simon Jenkins
- Dr Janina Ramirez
- Dr Pete Edwards
2017
- Terry Waite
- Janey Downshire
- Professor Anil Seth
- Professor Keith Ward
- Professor Geraint Lewis & Luke Barnes
- Randall Munroe
- Dr Peter Wothers
- Peter Stanford
- Dr Beth Healey
- Professor Paul Freemont
- Professor Lisa Randall
- Steve Biddulph
- Sir Ron Cooke
- Jonathan Dimbleby
- Christina Lamb
- Richard Coles
- Professor Jeff Forshaw
- Ann Widdecombe
- Dan Cruickshank
- Gervase Phinn
- Professor Mike Ferguson
- Professor Kevin Shakesheff