Type III
- 8 cm/40 3rd Year Type naval gun
- British Railways Type 3 Diesel locomotives
- Class 3 (disambiguation)
- Compact Cassette tape types and formulations
- Explained sum of squares
- Hyperlipoproteinemia type III
- IBM Type III Library
- IEC 62196
- Intermediate filament
- Jean jacket
- Kardashev scale
- Motorola Type IIi Hybrid
- Nitric oxide synthase
- Peugeot Type 3
- PostScript fonts
- R-Type III
- Type 3 12 cm AA Gun
- Type 3 Chi-Nu
- Type 3 Chū-SAM
- Type 3 aircraft machine gun
- Type 3 heavy machine gun
- Type 3 mine
- Type III error
- Type III secretion system
- Volkswagen Type 3