Imerio Massignan (2 January 1937 – 3 May 2024) was an Italian professional road cyclist.

A pure climber, he debuted as professional in the 1959 Giro d'Italia, finishing 5th overall.

This was followed by a series of good placements in the subsequent editions, including a 2nd overall in the 1962 Giro behind Franco Balmamion.

At the Tour de France he won the Mountains classification in 1960 and 1961, when he also finished 4th overall.

This biographical article related to an Italian cycling person born in the 1930s is a stub.