Places beginning with RO in Indiana, United States
- Roachdale
- Roadman Corner
- Roann
- Roanoke
- Roanoke Station
- Robb, Township of
- Roberts
- Robertsdale
- Robinson (historical)
- Robinson, Township of
- Roble Woods
- Rob Roy
- Rochester
- Rochester, Township of
- Rock Creek Center
- Rockcreek, Township of
- Rock Creek, Township of
- Rock Creek, Township of
- Rock Creek, Township of
- Rockdale
- Rockfield
- Rockford
- Rockford
- Rock Hill
- Rocklane
- Rockport
- Rockport
- Rockport Junction
- Rockville
- Rocky Ford
- Rocky Ripple
- Rogers
- Rogersville
- Roland
- Roll
- Rolling Acres
- Rolling Hill Estates
- Rolling Hills
- Rolling Hills
- Rolling Prairie
- Rolling Ridge
- Rome
- Rome City
- Romine Corner
- Romney
- Romona
- Root, Township of
- Rosebud
- Rosebud
- Rosebud
- Roseburg
- Roseburg
- Rosedale
- Rosedale Hills
- Roseland
- Roselawn
- Rosewood
- Ross
- Rossburg
- Rosston
- Rosstown
- Ross, Township of
- Ross, Township of
- Rossville
- Roth Park
- Round Grove
- Round Grove, Township of
- Royal Center
- Royal Oaks
- Royalton
- Royerton
- Royville