- AFAST stands for Acoustical Filter Assisted System Tuning (speaker feature; Pioneer)
- AFAST stands for Abdominal Focused Assessment with Sonography for Trauma (ultrasound protocol)
- AFAST stands for Atlantic Fleet Active Sonar Training
- AFAST stands for Army Flight Aptitude Selection Test (US Army)
- AFAST stands for Alternate Flight Aptitude Selection Test
- AFAST stands for Active Final Approach Spacing Tool
- AFAST stands for Aviation Financial Analyst Tool
AFAST