- FTE
- FTIR
- FTO gene
- FTP
- FTP server
- FTTH
- FTTX
- FWER
- FWHM
- FXR
- FaaS
- Fab
- Fab labs
- Fabric
- Fabric structures
- Fabrication
- Fabrication and testing
- Fabry disease
- Fabs
- Facade
- Facadism
- Face
- Face ID
- Face detection
- Face seal
- Face shields
- FaceNet
- Facebook Like button
- Faceplate
- Facet joint
- Faceted classification
- Faceting
- Facets
- Facial
- Facial electromyography
- Facial expression
- Facial hair
- Facial muscles
- Facial nerve
- Facial nerve paralysis
- Facial paralysis
- Facial recognition
- Facial skeleton
- Facial symmetry
- Facies
- Facilitation
- Facility location problem
- Facility management
- Facing
- Factor analysis
- Factor endowment
- Factor graphs
- Factor of safety
- Factor system
- Factorial
- Factorial experiment
- Factoring
- Factorization
- Factors of production
- Factory
- Factory method
- Factory system
- Facultative
- Facultative lagoon
- Facultatively anaerobic
- Fade
- Fading
- Fading distribution
- Fahrenheit
- Fail-safe
- Failover
- Failure
- Failure Mode and Effects Analysis
- Failure analysis
- Failure causes
- Failure detector
- Failure mode
- Failure rate
- Fair data
- Fair queuing
- Faithful representation
- Falciform ligament
- Fall cone test
- Fall line
- Fall prevention
- Fall protection
- Fall time
- Fallacy
- Falling weight deflectometer
- Fallopian tube
- Falls in older adults
- False alarms
- False brinelling
- False color
- False dichotomy
- False diffusion
- False neurotransmitter
- False positive rate
- False positives
- False premise