An RFID tag includes: a sheet-like base; an antenna provided on the base and extending along the base; a circuit chip mounted on the base and connected to the antenna for performing radio communication through the antenna; a protection body wider than the circuit chip and narrower than the antenna, which is located at least either above the circuit chip or on a backside of the circuit chip with the base interposed therebetween for protecting the circuit chip; and a connection section provided as a portion of the antenna at a location where an edge of the protection body and the antenna intersect with each other as viewed from a direction intersecting with a surface of the base, which includes one or more conductor patterns narrower than other portion of the antenna, and which connects inner and outer antenna portions of the edge with each other.