- DIFM stands for Dietitians in Integrative and Functional Medicine (American Dietetic Association)
- DIFM stands for Do It for Me (as opposed to Do It Yourself)
- DIFM stands for Diplôme des Iles de la France Métropolitaine (French: Diploma of the Metropolitan French Islands; resource)
- DIFM stands for Digital Instantaneous Frequency Measurement
- DIFM stands for Due-In From Maintenance
- DIFM stands for Distributed Interactive Fire Mission
DIFM