The Meijō Line's color on maps is wisteria purple and stations are labeled with the prefix "M".

The name Meijō is derived from the abbreviated kanji of Nagoya Castle (名古屋城, Nagoya-jō).

The Meikō Line's color on maps is a stripe of wisteria purple and white, and stations are labeled with the prefix "E".

The name Meikō is derived from the abbreviated kanji of Nagoya Port (名古屋港, Nagoya-kō).

Women-only cars were introduced on the line on 4 July 2016, operating in the mornings until 09:00.