Line 13 may refer to:
Asia
Line 13 (Beijing Subway), China
Line 13 (Chengdu Metro), China (under construction) Line 13 (Dalian Metro), China Line 13 (Guangzhou Metro), China Line 13 (Qingdao Metro), China Line 13 (Shanghai Metro), China Line 13 (Shenzhen Metro), China (under construction) Line 13 (Mumbai Metro), India (planned) Thomson–East Coast MRT line, number 13, Singapore Tokyo Metro Fukutoshin Line, officially line 13, Japan
Europe
Line 13 (Moscow Metro), or Moscow Monorail, Russia
Line 13 (Stockholm Metro), a red line, Sweden
Barcelona Metro line 13, Spain
Paris Métro Line 13, France
S13 (ZVV), Zurich, Switzerland
North America
13 (BMT rapid transit service), New York City, US (defunct) SEPTA Route 13, Philadelphia, US
South America
Line 13 (CPTM), São Paulo, Brazil
