Places beginning with RO in New Jersey, United States
- Roadstown
- Robanna
- Robbinsville
- Robertsville
- Robinsville
- Robinvale
- Rochelle Park
- Rochelle Park, Township of
- Rockaway
- Rockaway, Borough of
- Rockaway, Township of
- Rockaway Valley
- Rockefellows Mills
- Rockingham
- Rockleigh
- Rockleigh, Borough of
- Rock Mill
- Rockport
- Rockport
- Rocktown
- Rockwood
- Rocky Hill
- Rocky Hill, Borough of
- Roebling
- Roosevelt
- Roosevelt, Borough of
- Roosevelt City
- Roosevelt Park
- Rosedale
- Rosedale
- Rosedale Village
- Roseland
- Roseland, Borough of
- Roselle
- Roselle, Borough of
- Roselle Park
- Roselle Park, Borough of
- Rosemont
- Rosemont
- Rosenhayn
- Roseville
- Roseville
- Ross Corner
- Rossmoor
- Round Top
- Rowland Mills
- Roxburg
- Roxbury, Township of
- Royce Valley
- Roys