Cosmos 672 is a code name for unmanned flight of the Soviet Soyuz spacecraft. It was common in the Soviet Union to give only successful missions an official name. Failed flights were mostly not announced and test flights only under the general cover name cosmos. It was the 29th flight in the Soviet Sojusprogramm.
This was the second flight in preparation for the joint Apollo -Soyuz project with NASA. The spacecraft had a modified, to dock to the connection module APDS ( Androgynous Peripheral Docking System) to instead of the standard coupling system. In addition, the spacecraft with two solar panels was provided. For this mission, the flight profile for the upcoming coupling was flown with the Apollo spacecraft. Cosmos 672 reached on August 14, the designated orbit (227 km x 237 km).