Last name Deyst (Deyst 
) , around the globe, is a very rare cognomen. The surname Deyst is characteristic of Germany, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Deyst is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Deyst | Germany, Brazil, United States |
| john jacob deyst, jr. Sc.D. Massachusetts Institute of Technology 1967 |
|