Bike-to-Work Day is an annual event held on various days in the Spring across the United States and Canada that promotes the bicycle as an option for commuting to work. Leading up to Bike-to-Work Day, national, regional, and local bicycle advocacy groups encourage people to try bicycle commuting as a healthy and safe alternative to driving by providing route information and tips for new bicycle commuters. On Bike-to-Work Day, these groups often organize bicycle-related events, and in some areas, pit stops along bicycle routes with snacks.

Bike-to-Work Day was originated by the League of American Bicyclists in 1956^[1] and is a part of Bike-to-Work Week, which is in turn part of National Bike Month.