The 2017 Il Lombardia was a road cycling one-day race that took place on 7 October.

It was the 111th edition of the Il Lombardia and the 36th event of the 2017 UCI World Tour.

Laurens De Plus (Quick-Step Floors) suffered a small fracture to his right knee when he was launched over the guardrail and fell into a ravine.

[3] Jan Bakelants (AG2R La Mondiale) remained hospitalised in Como with seven broken ribs and two fractures to his spine.

Simone Petilli (UAE Team Emirates) was diagnosed after his crash at the same site with two back fractures, a broken collarbone and shoulder blade.