The Kamiiida Line (上飯田線, Kamiiida-sen) is a subway line in Nagoya, Japan, part of the Nagoya Municipal Subway system. It runs between Kamiiida and Heian-dōri, both in Kita Ward, Nagoya, and operates, with through service, as an extension to connect the Meitetsu Komaki Line to the City's Meijō Line. The Kamiiida Line's color on maps is pink and stations are labeled with the prefix "K". Officially, the line is called the Nagoya City Rapid Railway Line 7 (名古屋市高速度鉄道第7号線, Nagoya-shi Kōsokudo Tetsudō Dai-nana-gō-sen). All stations accept manaca, a rechargeable contactless smart card, and other major Japanese IC cards.

After the abolishment of Nagoya Municipal Tramway in the 1970s, Kamiiida Station, the terminus of Meitetsu's Komaki Line, lost its connection to Nagoya's other railway lines. The Kamiida Line, serving as link with only two stops officially on the line, was opened in 2003.

There is a future plan to extend the line, but the plan is currently suspended.

All stations are in Nagoya, Aichi Prefecture.

Number	Station name	Japanese	Total distance	Transfers	Location
↑ Through service to/from Meitetsu Komaki Line ↑
K01	Kamiiida	上飯田	0 km	Meitetsu: Komaki Line	Kita
K02	Heian-dōri	平安通	0.8 km	Meijō Line (M-11)
Planned
K03	Akatsuka	赤塚			Higashi
K04	Takaoka	高岳		Sakura-dōri Line (S-06)
K05	Shinsakae-machi	新栄町		Higashiyama Line (H-11)
K06	Maruta-machi	丸田町		Nagoya Municipal Subway: Kanayama Line, Tōbu Line (both planned)	Naka

: Names are tentative.

• List of railway lines in Japan

• (in Japanese) Nagoya City Transportation Bureau official website
• (in Japanese) Kami-iida Link Line official website

35°12′00″N 136°55′47″E / 35.20000°N 136.92972°E / 35.20000; 136.92972