Type 4 could refer to:
- Type 4 asteroid, a type of asteroid
- Type 4 deflector shield, a type of deflector shield
- Type 4 micro-inducer, a tool
- Type 4 phaser, a shuttlecraft phaser.
- Type 4 stealth assault, a method of attack
- Type 4 Tallonian microscanner, a type of microscanner
- Type-four quantum singularity, a spatial distortion.
You may also be looking for:
- Class 4, another series of classifications.