ecomyca (えこまいか) is a rechargeable contactless smart card issued by the Toyama Chihō Railway in Japan since 2010.

[3] The name is a portmanteau of "ecology" and "my card", and is a play on the Toyama dialect "ikomaika" (行こまいか) which translates to "let's go".

[4][5] On 30 September 2019, the Toyama Chihō Railway operator announced ecomyca cards and their stored values will no longer expire after ten years.

[1] JR West announced IC cards in Japan's Nationwide Mutual Usage Service including ICOCA, Kitaca, Suica, PASMO, manaca, TOICA, PiTaPa, Hayakaken, nimoca, and SUGOCA would be accepted alongside ecomyca starting 10 October 2021.

[10] Toyama City's Toyo Activity (とほ活, tohokatsu) smartphone app can be used to check balances on compatible iOS and Android hardware supporting NFC.