Color & Icon Name Mark First section
opened
Last ex-
tension
Length Stations
yellow Subway NagoyaHigashiyama.png Line 1 Higashiyama Line H 1957 1982 20.6 km (12.8 mi) 22
purple Subway NagoyaMeijo.png Line 2 Meijō Line M 1965[Note 1] 1971 8.9 km (5.5 mi) 12[Note 2]
Line 4 1974[Note 3] 2004 17.5 km (10.9 mi) 17[Note 2]
Single Color Flag - FFFFFF.svgSingle Color Flag - FFFFFF.svgSingle Color Flag - FFFFFF.svgSingle Color Flag - FFFFFF.svgSingle Color Flag - FFFFFF.svg
purple & white
Line 2 Meikō Line E 1971[Note 4] - 6.0 km (3.7 mi) 7[Note 5]
blue Subway NagoyaTsurumai.png Via trackage rights Meitetsu Inuyama Line - 1993[Note 6] - 21.4 km (13.3 mi) 13[Note 7]
Line 3 Tsurumai Line T 1977 1993 20.4 km (12.7 mi) 20
Via trackage rights Meitetsu Toyota Line - 1979[Note 8] - 15.2 km (9.4 mi) 8[Note 9]
Meitetsu Mikawa Line N/A[Note 10] - 1.4 km (0.87 mi) 2[Note 9]
red Subway NagoyaSakuradori.png Line 6 Sakura-dōri Line S 1989 2011 19.1 km (11.9 mi) 21
pink Subway NagoyaKamiiida.png Via trackage rights Meitetsu Komaki Line - 2003[Note 11] - 18.3 km (11.4 mi) 13[Note 12]
2003[Note 13] - 2.3 km (1.4 mi) 2[Note 14]
Line 7 Kamiiida Line K 2003[Note 15] - 0.8 km (0.50 mi) 2[Note 16]