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The Communities of Ontario (ON)

Select by first two letters of name

OA	OB	OC	OD	OF	OG
OH	OI	OJ	OL	OM	ON
OP	OR	OS	OT	OU	OV
OW	OX	OZ

Notes about this Index:

#	Indicates a community that is historic and no longer exists. While a few buildings, houses or some ruins might still exists, most historic communities are gone with no trace.
?	Indicates what we call an Orphan. An Orphan is the situation where we have a name with very little information or we're uncertain whether the name is a community, a post office or might be railroad related such as a siding or station.
+	While a post office name generally indicates the community in which it is located, other PO names don't. In this case, we have a PO name but not the community in which its located.

O'Briens LandingX

O'Donnell LandingX

O'Grady SettlementX

O'Reilly's BridgeX

O'Sullivans CornersX

Oakhill ForestX

Oakridge AcresX

Oakwood CornersX

Off Lake CornerX

Ojibway IslandX

Ojibway Nation of SaugeenX

Old CabbagetownX

Old Fort HenryX

Old Mine CentreX

Old Road CrossingX

Old Spring BayX

Old StittsvilleX

Old Woman's RiverX

Oliver PaipoongeX

Omeedjilawh CampX

Omemee
See: Larder Lake Station

Onaping - LevackX

Orange CornersX

Orchard HeightsX

Oriole ParkwayX

Ormsby JunctionX

Osborne CornersX

Osgoode StationX

Oshawa HarbourX

Osnabruck CentreX

Osnaburgh
See: Mishkeegogamang

Osnaburgh CentreX

Osnaburgh House
See: Mishkeegogamang

Ossossane BeachX

Ostryhon CornersX

OttawaX
Other names:
Bytown

Oxford StationX

Oxford VillageX

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This page was last modified/updated: 02 Apr 2025