O-Train

O-Train
Overview
OwnerCity of Ottawa
LocaleOttawa, Ontario
Transit typeLight rail
Number of lines3 (+1 under construction)
Number of stations25 (+16 under construction)
Daily ridership104,800 (weekdays, Q1 2025)
Annual ridership20,838,300 (2024)
Operation
Began operationOctober 15, 2001 (2001-10-15)
Operator(s)OC Transpo
CharacterAt-grade, elevated and underground
Technical
System length35.5 km (22.1 mi) (+27 km (17 mi) under construction)
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Top speed80 km/h (50 mph)
System map
Trim
(2025)
Place d'Orléans
(2025)
Convent Glen
(2025)
Jeanne d'Arc
(2025)
Montréal
(2025)
 Blair 
Cyrville
St-Laurent
Tremblay
Hurdman
Lees
uOttawa
Rideau
Parliament
Lyon
Pimisi
 Bayview 
Corso Italia
Tunney's
Pasture
Dow's Lake
Westboro
(2027)
Carleton
Kichi Zìbì
(2027)
Mooney's Bay
Walkley
Sherbourne
(2027)
Greenboro
New Orchard
(2027)
South
Keys
Uplands
Lincoln Fields
(2027)
 Airport 
Iris
(2027)
Leitrim
Algonquin
(2027)
Bowesville
Queensview
(2027)
 Limebank 
Pinecrest
(2027)
Bayshore
(2027)
Moodie
(2027)
Corkstown Yard
Key
Line 1
Line 2
Lines 1 & 3
Line 4
Line 3
non-revenue
tracks

All stations are accessible

The O-Train is a light rail system in Ottawa, Ontario, Canada, operated by OC Transpo. The O-Train system consists of three lines, all of which are fully grade-separated. As of March 2025, one line is currently being extended and a new line will be added as part of the Stage 2 project, with new segments being phased in between 2025 and 2027.

The O-Train network currently operates one electric light rail line, Line 1, and two diesel light rail lines, Line 2 and Line 4. Line 1 travels in a 2.8 km tunnel in the downtown core, and the rest of the network continues to operate grade-separated on surface-level, trenched, or elevated tracks.

Line 1 is being extended in both directions, with the eastward extension to Trim station in Orleans scheduled to open first in 2025. By 2027, the westward expansion of Line 1 to Algonquin station and the construction of new Line 3 to Moodie station in the west end are expected to be completed. These expansions will bring the system's total length to 64.5 km (40.1 mi), with four lines and 41 stations.