English abbreviations from ryf to rzz
- RYF (Richmond Youth Forum)
- RYG (Moss Airport, Rygge / Rygge Air Station)
- RYH (Russian Youth Hostel)
- RYHF (Rochester Youth Hockey Foundation)
- RYHL (Rochester Youth Hockey League, Inc.)
- RYI (Reference Year Index)
- RYK (Relay ( Military designation))
- RYM (Residential Yearly Meeting)
- RYN (Medis Airport)
- RYP (Rangjung Yeshe Publications)
- RYR (Robert Yates Racing)
- RYS (Racine Youth Sports)
- RYT (Reflexology Yoga Therapy)
- RYV (Raise Your Voice)
- RYW (Rate Your Writing)
- RZ (Return to Zero)
- RZA (RechenZentrum Amaliendorf)
- RZB (Regulated Zone Boundary)
- RZC (Red Zone Cuba)
- RZD (Recurring Zero Demand)
- RZE (Rzeszów-Jasionka Airport)
- RZG (Radio Zum Glueck)
- RZH (Roberti Z?Berg- Harris Urban Open Space and Recreation Program)
- RZK (Real Zeit Kernel)
- RZL (Return to Zero Level)
- RZM (ReichZeugMeisterei)
- RZN (Turlatovo Airport)
- RZP (Cesar Lim Rodriguez (Taytay-Sandoval) Airport)
- RZR (Beratungszentrum Regensburg)
- RZS (Royal Zoological Society)
- RZT (Radiation Zone Training)
- RZV (Recreatie ZaalVoetbal)
- RZW (Radiation Zone Work)
- RZZ (Halifax County Airport)