is a rechargeable contactless smart card issued by the Toyama Chihà  Railway in Japan since . The name is a portmanteau of "ecology" and "my card", and is a play on the Toyama dialect which translates to "let's go".
The card supersedes the contactless card issued by the Toyama Light Rail from , until its merger with the Toyama Chihà  Railway on .
ecomyca cards are contactless payment cards, used on the Toyama Chihà  Railway, Toyama Light Rail, and Maidohaya community bus routes in Toyama. The minimum cost is , including a deposit.
ecomyca cards can also be used in Toyama's Cyclocity bike share scheme.
On , the Toyama Chihà  Railway operator announced ecomyca cards and their stored values will no longer expire after ten years.
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 .
However, ecomyca cards carry discounted fares, and national IC cards cannot yet be recharged at Toyama Chihà  Railway stations.
ecomyca cards incorporates contactless RFID technology developed by Sony called FeliCa, in common with other Japanese and global IC card tickets.
Toyama City's smartphone app can be used to check balances on compatible iOS and Android hardware supporting NFC.