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