| Einar Langfeldt | |
| Birth Date: | 1 December 1884 |
| Birth Place: | Kristiansand |
| Nationality: | Norwegian |
| Occupation: | Physician |
| Relatives: | Gabriel Langfeldt (brother) |
Einar Langfeldt (1 December 1884 - 19 September 1966) was a Norwegian physician. He was born in Kristiansand, and was a brother of Gabriel Langfeldt. He was appointed professor at the University of Oslo from 1925. Among his works is his thesis The partial pancreatectomy, and Lærebok i fysiologisk og medisinsk kjemi from 1928.[1] [2]