An electronic component package includes: a first side surface terminal provided on a first side surface; a first external connection terminal provided on a mounting surface (rear surface); a first recess electrode provided in a first recess and electrically connected with the first external connection terminal; and a first branch wiring disposed on a front surface of a middle plate and including a first end exposed in the first side surface between the first side surface terminal and the first recess electrode. The relation: L11>L12 is satisfied, where L11 is the distance between the first end and the first recess electrode and L12 is the distance between the first end and the first side surface terminal.