Circle Line or circular line is an expression commonly used to describe a circular route in a public transport network or system, and may refer to:
Railways
Australia
- City Circle free tram, in Melbourne
- City Circle trains were originally a feature of the City Loop in Melbourne
- Inner Circle railway line, in Melbourne
- Outer Circle railway line, in Melbourne
- City Circle, in Sydney
China
- Line 2 (Beijing Subway)
- Line 10 (Beijing Subway)
- Line 4 (Shanghai Metro)
- Line 7 (Chengdu Metro)
- Line 5 (Zhengzhou Metro)
- Loop line (Chongqing Rail Transit)
- Line 11 (Guangzhou Metro) (under construction)
Denmark
- City Circle Line, in Copenhagen
Finland
- Ring Rail Line, in Vantaa (Greater Helsinki)
Germany
Japan
- Meijō Line, in Nagoya
- Osaka Loop Line, in Osaka
- Sapporo Streetcar, in Sapporo
- Toei Ōedo Line, in Tokyo
- Toyama City Tram Line Route 3, in Toyama
- Yamanote Line, in Tokyo
Malaysia
- MRT Circle Line, in Kuala Lumpur
Myanmar
- Yangon Circular Railway
Norway
- Ring Line (Oslo)
Poland
- Łódz Circular line, a section of the Łódzka Kolej Aglomeracyjna commuter rail service, Łódz, Poland
Russia
- Koltsevaya line, also called the Circle line, a rapid transit line in Moscow
- Bolshaya Koltsevaya line, also called the Large Circle line, a rapid transit line under construction in Moscow
- Moscow Central Circle, an urban/metropolitan rail line around Moscow
Singapore
South Korea
Spain
Taiwan
- Circular light rail, in Kaohsiung
- Circular line (Taipei Metro)
Thailand
- MRT Blue Line, in Bangkok
United Kingdom
- Circle line (London Underground), in London
- Cathcart Circle Lines, in Glasgow
- Fife Circle Line, in Edinburgh
- Glasgow Subway, in Glasgow
United States
- Chicago 'L' Circle Line proposed but unbuilt
Waterways
- United States
- Circle Line Downtown, in New York City
- Circle Line Sightseeing Cruises, in New York City
See also
- Ring road or beltway, the circumferential motorway.
- List of ring roads