| Designer | # Fonts |
|---|---|
| Ole Neumann | 2 |
| Oleg Khalimov | 1 |
| olexstudio | 2 |
| Oliver Garcia | 1 |
| Oliver González | 1 |
| Oliver Gries | 1 |
| Oliver Ponce | 1 |
| Oliver Waldemar | 1 |
| Oliver-A. Krimmel | 2 |
| oliverinlisbon | 1 |
| olivetype | 46 |
| Olivia Fair | 1 |
| Olivia Schoeb | 1 |
| Olivier "Zitoune" D. | 2 |
| Olivier Langlois | 1 |
| Olivier Mordefroid | 3 |
| Olivier Perkins | 1 |
| Ollie | 1 |
| Olly Wood | 1 |
| Omaha Recycles | 1 |
| Omaikraf Studio | 10 |
| Omar Colon | 2 |
| Omar Mogollón-Alagunna | 12 |
| Omar the Radwan | 6 |
| omar220783 | 1 |
| OmART | 2 |
| Ombra | 1 |
| Omega Design | 1 |
| Omega Font Labs | 45 |
| Omega Groundon | 1 |
| OmegaPC777 | 1 |
| Omen Type | 4 |
| Omer KOSE | 1 |
| Ominous Cat | 1 |
| omoriley | 1 |
| Omotu | 10 |
| Omotu Studio | 3 |
| One by Four | 2 |
| One Design | 34 |
| One Hit Combo | 1 |
| onezero | 12 |
| ONG Type | 42 |
| Only Fonts | 3 |
| onlyfontyouandme | 2 |
| onlygfxcom | 1 |
| Onne Hermawan | 1 |
| Onno | 2 |
| ony studio | solutype | 6 |
| Onyx Font Foundry | 10 |
| Oo Yi Lo | 1 |
