| Peter Lorimer | |
| Birth Name: | Peter James Lorimer |
| Birth Date: | 16 April 1939 |
| Birth Place: | Christchurch, New Zealand |
| Death Place: | Auckland, New Zealand |
| Fields: | Mathematics |
| Workplaces: | University of Canterbury, University of Auckland |
| Alma Mater: | McGill University |
| Thesis Title: | A study of T2-groups. |
| Thesis Year: | 1963 |
| Doctoral Advisor: | Hans Schwerdtfeger |
Peter James Lorimer (16 April 1939 – 7 February 2010) was a New Zealand mathematician. His research concerned group theory, combinatorics, and Ramsey theory.
Born in Christchurch, Lorimer did a BSc / MSc in mathematics at the University of Auckland and won a Commonwealth Scholarship to do a PhD at McGill University in Montreal, which he completed in 1963 under the supervision of Hans Schwerdtfeger. He returned to New Zealand to lecture, first at University of Canterbury and then at University of Auckland.[1] [2]