- YAEF stands for Young Adult Ecumenical Forum
- YAEF stands for Youth Awareness Environmental Forum
- YAEF stands for Young Americans Education Foundation
- YAEF stands for Yet Another Epistemic Formalism (P. Hanschke)
- YAEF stands for Yet Another Extra Field
- YAEF stands for Yet Another Eleusis Fix
- YAEF stands for Yet Another Email Forwarder
- YAEF stands for Yet Another Encoding Format
YAEF