Places beginning with RO in Oklahoma, United States
- Roberta
- Robinson Corner
- Rock Creek
- Rock Creek, Township of
- Rock Creek, Township of
- Rock Falls, Township of
- Rock Island
- Rock Island, Township of
- Rock Island, Township of
- Rock, Township of
- Rock, Township of
- Rocky
- Rocky Ford
- Rocky Ford
- Rocky Mountain
- Rocky Mountain Township
- Rocky Point
- Roff
- Roger Mills County
- Rogers
- Rogers County
- Roland
- Roland Township
- Roll
- Romia
- Romulus
- Ron
- Roosevelt
- Rose
- Rosedale
- Rosehill
- Rose Hill, Township of
- Rose, Township of
- Rosston
- Rossville
- Round Grove, Township of
- Round Grove, Township of
- Row
- Roxana