Acronyms with O
- OSHA
- OTP
- OTT
- OPEC
- OAP
- OWL
- OBS
- OPP
- OTC
- orange
- OPS
- OECD
- Odd
- OLED
- ONO
- OMS
- OBE
- OSS
- OVA
- OWN
- OPT
- Open
- OAS
- OMB
- OIL
- ONS
- OCT
- OAR
- Over
- OLA
- One
- Olive
- out
- OCR
- old
- OAT
- octopus
- OTA
- ORG
- Oval
- OEM
- OTOH
- OAK
- OWLS
- OED
- OASIS
- ORO
- O.R
- O.W.L
- ORD
- OOH
- oops
- Off
- Omega
- ocad
- ominous
- O.W.Ls
- OIL RIG
- Onto
- ORS
- OOD
- Owen
- ouch
- O.P
- Only
- OTB
- Outfitters
- Oreo
- O.W.C.A
- oats
The words in the list Acronyms with O come from players of the word game Categories game.