A rotor for a spinning reel is configured to rotate about a spool shaft, and includes a tubular portion and a plate-shaped portion. The tubular portion is disposed away from the spool shaft at a predetermined interval. The plate-shaped portion includes a radially outer part and a radially inner part. The radially outer part is integrated with an inner peripheral part of the tubular portion. The radially inner part extends from the radially outer part toward the spool shaft. The radially outer part has a smaller thickness than at least a part of the radially inner part.
