The 1977 IAAF World Race Walking Cup was held in Milton Keynes, United Kingdom, on 24–25 September 1977.

For the first time, a new competition name IAAF Race Walking World Cup was introduced replacing the former Lugano Trophy.

Mexico was dominant in the men's events, taking the team title and the top two spots in the 20 km and 50 km events through Daniel Bautista, Domingo Colín, Raúl González and Pedro Aroche.

[2] From 1961 to 1985 there were qualifying rounds for the men's competition with the first two winners proceeding to the final.

This year, the Soviet Union, the German Democratic Republic, the Federal Republic of Germany, the United Kingdom, the United States, and México proceeded directly to the final.