GRPI
| Acronym | Definition |
|---|---|
| GRPI | Grand Rapids Printing Ink (Grand Rapids, MI) |
| GRPI | Goals, Roles, Processes and Interpersonal (Six Sigma) |
| GRPI | Genetic Resources Policy Initiative (various locations) |
| GRPI | Garde Regiment Prinses Irene (Dutch: Princess Irene Regiment Guard) |
| GRPI | Grand River Partners, Inc. (watersheds; Ohio) |