| Acronym | Definition |
|---|
| TGIF | Thank God It's Friday |
| TGIF | Thank God I Found You |
| TGIF | TGI Friday's (US restaurant chain) |
| TGIF | The Green Initiative Fund |
| TGIF | Turfgrass Information File |
| TGIF | Thank Goodness It's Friday |
| TGIF | Today God Is First |
| TGIF | That Girl Is Fat |
| TGIF | Toes Go In First |
| TGIF | This Goes in Front |
| TGIF | Thank God I'm French |
| TGIF | Thank God I'm Free |
| TGIF | Thank God I'm Forgiven |
| TGIF | Thank God It's Funday |
| TGIF | The Great Index to Fun (Honolulu, HI) |
| TGIF | Teaching Geography Is Fundamental Act |
| TGIF | Thank God I'm Female |
| TGIF | Thank God I'm Filipino |
| TGIF | The Great Indoor Fight |
| TGIF | The Great Idea Finder |
| TGIF | Tactical Ground Intercept Facility |
| TGIF | Thank God It's Free |
| TGIF | The Global Institute of Finance and Banking |
| TGIF | Thank God It's Florida |
| TGIF | Thank God It Floats (Navy architects) |
| TGIF | The Gifted in Fremont |
| TGIF | Transgenic and Gene-Targeting Institutional Facility (University of Kansas Medical Center) |
| TGIF | Thank God I'm Fresh |
| TGIF | That Girl Is Fine |
| TGIF | Transportable Ground Intercept Facility |
| TGIF | Texas Geriatrics Interest Foundation |
| TGIF | Toy and Game Inventor's Forum |
| TGIF | That Girl Is Funny (website) |
| TGIF | Thank God I'm Finished |
| TGIF | The Global Institute Forum (Indian School of Business; India) |
| TGIF | The Greek Intervention Framework |
| TGIF | To Get Information First |
| TGIF | Transportable Ground Interface Facility |
| TGIF | Treasurer's Group in Force |
| TGIF | Tata Group Innovation Forum (Tata Quality Management Services) |
| TGIF | Tadpoles Grow Into Frogs |
| TGIF | Totally Good Internet Filtered (Family Life Ministries) |
| TGIF | Thank God I'm Fired |
| TGIF | That Girl Is Freaky |
| TGIF | Top Grade Insulation Fabrication (Waco, TX) |