The cycling competition at the 1948 Summer Olympics in London consisted of two road cycling events and four track cycling events, all for men only. The track cycling events were held at the Herne Hill Velodrome in south London. The road race events were held in Windsor Great Park, south of Windsor.

The Herne Hill Velodrome is an outdoor velodrome in Herne Hill, in south London. It is one of the oldest cycling tracks in the world, having been built in 1891. It hosted the track cycling events in the 1948 Summer Olympics and was briefly the home of Crystal Palace Football Club during World War I.