| Ísak Guttormsson | |
| Nationality: | Faroese |
| Office: | Lawman of the Faroe Islands |
| Termstart: | 1583 |
| Termend: | 1588 |
| Parents: | Guttormur Andrasson (father) |
| Predecessor: | Jógvan Heinason |
| Successor: | Pætur Jákupsson |
Ísak Guttormsson was, from 1583 to 1588, Lawman of the Faroe Islands.
Ísak Guttormsson lived on Suðuroy, Faroe Islands, where he had land in Nes and Vágur. He was the son of Guttormur Andrasson, former Lawman of the Faroe Islands. Little else is known about Guttormsson.