Metro may refer to:
Geography
Metro City (Indonesia), a city in Indonesia
A metropolitan area, the populated region including and surrounding an urban center
Public transport
Rapid transit, a passenger railway in an urban area with high capacity and frequency
The public transport operator of city or metropolitan area
The transportation authority of city or metropolitan area
The urban rail transit system of a city or metropolitan area
Rail systems
Africa
Algiers Metro, in Algeria
Cairo Metro, in Egypt
Lagos Rail Mass Transit, in Nigeria
Asia
Dhaka Metro, in Bangladesh
Doha Metro, in Qatar
Dubai Metro, in United Arab Emirates
Hanoi Metro, in Vietnam
Ho Chi Minh City Metro, in Ho Chi Minh City, Vietnam
Lahore Metro, in Pakistan
Manila Metro Rail Transit System, in the Philippines
Osaka Metro, in Japan
Pyongyang Metro, in north Korea
Riyadh Metro, in Saudi Arabia
Tokyo Metro, in Japan
China
India
Iran
South Korea
Taiwan
Europe
France
Italy
Spain
North America
Canada
Mexico
United States
Oceania
Australia
New Zealand
South America
Lima Metro, in Peru
Medellin Metro, in Colombia
Metro de Santiago, in Chile
Metrovia, in Ecuador
Panama Metro, in Panama City, Panama
Brazil
Venezuela
Bus services and transit authorities
Asia
MetroMini, in Jakarta, Indonesia
Lahore Metrobus, in Pakistan
Europe
Metro (Belfast), in Northern Ireland
West Yorkshire Metro (or MetroTrain), in England, United Kingdom
North America
United States
Oceania
Brisbane Metro, in Australia